--- loncom/interface/statistics/lonstudentassessment.pm	2003/03/05 20:31:13	1.35
+++ loncom/interface/statistics/lonstudentassessment.pm	2004/03/01 16:39:19	1.95
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentassessment.pm,v 1.35 2003/03/05 20:31:13 matthew Exp $
+# $Id: lonstudentassessment.pm,v 1.95 2004/03/01 16:39:19 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -52,9 +52,12 @@ package Apache::lonstudentassessment;
 use strict;
 use Apache::lonstatistics;
 use Apache::lonhtmlcommon;
+use Apache::loncommon();
 use Apache::loncoursedata;
 use Apache::lonnet; # for logging porpoises
+use Apache::lonlocal;
 use Spreadsheet::WriteExcel;
+use Spreadsheet::WriteExcel::Utility();
 
 #######################################################
 #######################################################
@@ -85,13 +88,17 @@ my $Statistics;
 
 =item $show 'all', 'totals', or 'scores' determines how much data is output
 
+=item $single_student_mode evaluates to true if we are showing only one
+student.
+
 =cut
 
 #######################################################
 #######################################################
 my $show_links;
 my $output_mode;
-my $show;
+my $chosen_output;
+my $single_student_mode;
 
 #######################################################
 #######################################################
@@ -126,28 +133,44 @@ Inputs:
 #######################################################
 sub BuildStudentAssessmentPage {
     my ($r,$c)=@_;
+    #
     undef($Statistics);
+    undef($show_links);
+    undef($output_mode);
+    undef($chosen_output);
+    undef($single_student_mode);
+    #
+    my %Saveable_Parameters = ('Status' => 'scalar',
+                               'chartoutputmode' => 'scalar',
+                               'chartoutputdata' => 'scalar',
+                               'Section' => 'array',
+                               'StudentData' => 'array',
+                               'Maps' => 'array');
+    &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
+    &Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
+    #
+    &Apache::lonstatistics::PrepareClasslist();
+    #
+    $single_student_mode = 0;
+    $single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
+    if ($ENV{'form.selectstudent'}) {
+        &Apache::lonstatistics::DisplayClasslist($r);
+        return;
+    }
     #
     # Print out the HTML headers for the interface
     #    This also parses the output mode selector
-    #    This step must always be done.
+    #    This step must *always* be done.
     $r->print(&CreateInterface());
     $r->print('<input type="hidden" name="notfirstrun" value="true" />');
+    $r->print('<input type="hidden" name="sort" value="'.
+              $ENV{'form.sort'}.'" />');
     $r->rflush();
-    if (! exists($ENV{'form.notfirstrun'})) {
-        $r->print(<<ENDMSG);
-<p>
-<font size="+1">
-Please make your selections in the boxes above and hit 
-the button marked &quot;Update&nbsp;Display&quot;.
-</font>
-</p>
-ENDMSG
-#        $r->print(&OutputDescriptions());
+    #
+    if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
         return;
     }
     #
-    #
     my $initialize     = \&html_initialize;
     my $output_student = \&html_outputstudent;
     my $finish         = \&html_finish;
@@ -156,10 +179,6 @@ ENDMSG
         $initialize     = \&excel_initialize;
         $output_student = \&excel_outputstudent;
         $finish         = \&excel_finish;
-    } elsif ($output_mode eq 'multi-sheet excel') {
-        $initialize     = \&multi_sheet_excel_initialize;
-        $output_student = \&multi_sheet_excel_outputstudent;
-        $finish         = \&multi_sheet_excel_finish;
     } elsif ($output_mode eq 'csv') {
         $initialize     = \&csv_initialize;
         $output_student = \&csv_outputstudent;
@@ -168,9 +187,29 @@ ENDMSG
     #
     if($c->aborted()) {  return ; }
     #
+    # Determine which students we want to look at
+    my @Students;
+    if ($single_student_mode) {
+        @Students = (&Apache::lonstatistics::current_student());
+        $r->print(&next_and_previous_buttons());
+        $r->rflush();
+    } else {
+        @Students = @Apache::lonstatistics::Students;
+    }
+    #
+    # Perform generic initialization tasks
+    #       Since we use lonnet::EXT to retrieve problem weights,
+    #       to ensure current data we must clear the caches out.
+    #       This makes sure that parameter changes at the student level
+    #       are immediately reflected in the chart.
+    &Apache::lonnet::clear_EXT_cache_status();
+    #
+    # Clean out loncoursedata's package data, just to be safe.
+    &Apache::loncoursedata::clear_internal_caches();
+    #
     # Call the initialize routine selected above
     $initialize->($r);
-    foreach my $student (@Apache::lonstatistics::Students) {
+    foreach my $student (@Students) {
         if($c->aborted()) { 
             $finish->($r);
             return ; 
@@ -186,6 +225,54 @@ ENDMSG
 
 #######################################################
 #######################################################
+sub next_and_previous_buttons {
+    my $Str = '';
+    $Str .= '<input type="hidden" name="SelectedStudent" value="'.
+        $ENV{'form.SelectedStudent'}.'" />';
+    #
+    # Build the previous student link
+    my $previous = &Apache::lonstatistics::previous_student();
+    my $previousbutton = '';
+    if (defined($previous)) {
+        my $sname = $previous->{'username'}.':'.$previous->{'domain'};
+        $previousbutton .= '<input type="button" value="'.
+            'Previous Student ('.
+            $previous->{'username'}.'@'.$previous->{'domain'}.')'.
+            '" onclick="document.Statistics.SelectedStudent.value='.
+            "'".$sname."'".';'.
+            'document.Statistics.submit();" />';
+    } else {
+        $previousbutton .= '<input type="button" value="'.
+            'Previous student (none)'.'" />';
+    }
+    #
+    # Build the next student link
+    my $next = &Apache::lonstatistics::next_student();
+    my $nextbutton = '';
+    if (defined($next)) {
+        my $sname = $next->{'username'}.':'.$next->{'domain'};
+        $nextbutton .= '<input type="button" value="'.
+            'Next Student ('.
+            $next->{'username'}.'@'.$next->{'domain'}.')'.
+            '" onclick="document.Statistics.SelectedStudent.value='.
+            "'".$sname."'".';'.
+            'document.Statistics.submit();" />';
+    } else {
+        $nextbutton .= '<input type="button" value="'.
+            'Next student (none)'.'" />';
+    }
+    #
+    # Build the 'all students' button
+    my $all = '';
+    $all .= '<input type="button" value="All Students" '.
+            '" onclick="document.Statistics.SelectedStudent.value='.
+            "''".';'.'document.Statistics.submit();" />';
+    $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
+    return $Str;
+}
+
+#######################################################
+#######################################################
 
 sub get_student_fields_to_show {
     my @to_show = @Apache::lonstatistics::SelectedStudentData;
@@ -198,19 +285,6 @@ sub get_student_fields_to_show {
     return @to_show;
 }
 
-sub get_sequences_to_show {
-    my @Sequences;
-    foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) {
-        foreach my $sequence (@Apache::lonstatistics::Sequences) {
-            next if ($sequence->{'symb'} ne $map_symb && $map_symb ne 'all');
-            next if ($sequence->{'num_assess'} < 1);
-            push (@Sequences,$sequence);
-        }
-    }
-    return @Sequences;
-}
-
-
 #######################################################
 #######################################################
 
@@ -232,13 +306,20 @@ the chart page.
 #######################################################
 sub CreateInterface {
     my $Str = '';
+    $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
 #    $Str .= &CreateLegend();
     $Str .= '<table cellspacing="5">'."\n";
     $Str .= '<tr>';
-    $Str .= '<td align="center"><b>Sections</b></td>';
-    $Str .= '<td align="center"><b>Student Data</b></td>';
-    $Str .= '<td align="center"><b>Problem Sets</b></td>';
-    $Str .= '<td align="center"><b>Output Format</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
+    $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
+        &Apache::loncommon::help_open_topic("Chart_Output_Formats").
+        '</td>';
+    $Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
+        &Apache::loncommon::help_open_topic("Chart_Output_Data").
+        '</td>';
     $Str .= '</tr>'."\n";
     #
     $Str .= '<tr><td align="center">'."\n";
@@ -255,12 +336,26 @@ sub CreateInterface {
     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                                                       5,undef);
     $Str .= '</td><td>'."\n";
+    $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
+    $Str .= '</td><td>'."\n";
     $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
                                               $only_seq_with_assessments);
     $Str .= '</td><td>'."\n";
     $Str .= &CreateAndParseOutputSelector();
+    $Str .= '</td><td>'."\n";
+    $Str .= &CreateAndParseOutputDataSelector();
     $Str .= '</td></tr>'."\n";
     $Str .= '</table>'."\n";
+    $Str .= '<input type="submit" name="Generate Chart" value="'.
+        &mt('Generate Chart').'" />';
+    $Str .= '&nbsp;'x5;
+    $Str .= '<input type="submit" name="selectstudent" value="'.
+        &mt('Select One Student').'" />';
+    $Str .= '&nbsp;'x5;
+    $Str .= '<input type="submit" name="ClearCache" value="'.
+        &mt('Clear Caches').'" />';
+    $Str .= '&nbsp;'x5;
+    $Str .= '<br />';
     return $Str;
 }
 
@@ -281,100 +376,44 @@ my @OutputOptions =
        description => 'Output HTML with each symbol linked to the problem '.
 	   'which generated it.',
        mode => 'html',
-       show => 'all',
        show_links => 'yes',
        },
+     { name  => 'HTML, with all links',
+       value => 'html, with all links',
+       description => 'Output HTML with each symbol linked to the problem '.
+	   'which generated it.  '.
+           'This includes links for unattempted problems.',
+       mode => 'html',
+       show_links => 'all',
+       },
      { name  => 'HTML, without links',
        value => 'html, without links',
        description => 'Output HTML.  By not including links, the size of the'.
 	   ' web page is greatly reduced.  If your browser crashes on the '.
 	   'full display, try this.',
        mode => 'html',
-       show => 'all',
-       show_links => 'no',
-           },
-     { name  => 'HTML, scores only',
-       value => 'html, scores only',
-       description => 'Output HTML, only showing the total number of correct'.
-	   ' problems (or problem parts) and not the maximum possible for '.
-	   'each student',
-       mode => 'html',
-       show => 'scores',
-       show_links => 'no',
-           },
-     { name  => 'HTML, totals',
-       value => 'html, totals',
-       description => 'Output HTML, but only the summary statistics for each'.
-	   ' sequence selected.',
-       mode => 'html',
-       show => 'totals',
-       show_links => 'no',
-       },
-     { name  => 'Excel, scores only',
-       value => 'excel, scores only',
-       description => 'Output an Excel file (compatable with Excel 95), '.
-	   'with a single column for each sequence showing the students '.
-	   'score.',
-       mode => 'excel',
-       show => 'scores',
        show_links => 'no',
            },
-     { name  => 'Excel, totals',
-       value => 'excel, totals',
-       description => 'Output an Excel file (compatable with Excel 95), '.
-	   'with two columns for each sequence, the students score on the '.
-	   'sequence and the students maximum possible on the sequence',
+     { name  => 'Excel',
+       value => 'excel',
+       description => 'Output an Excel file (compatable with Excel 95).',
        mode => 'excel',
-       show => 'totals',
        show_links => 'no',
-           },
-     { name  => 'multi-sheet Excel',
-       value => 'multi-sheet excel',
-       description => 'Output an Excel file (compatable with Excel 95), '.
-	   'with a seperate worksheet for each sequence you have selected '.
-           'the data for each problem part '.
-           '(number of tries, status, points awarded) will be listed.',
-       mode => 'multi-sheet excel',
-       show => 'totals',
-       show_links => 'no',
-           },
-     { name  => 'multi-sheet Excel, by section',
-       value => 'multi-sheet excel, by section',
-       description => 'Output an Excel file (compatable with Excel 95), '.
-	   'with a seperate worksheet for each sequence you have selected '.
-           'the data for each problem part '.
-           '(number of tries, status, points awarded) will be listed.  '.
-           'There will be one Excel workbook for each section selected.',
-       mode => 'multi-sheet excel',
-       show => 'by section',
-       show_links => 'no',
-           },
-     { name  => 'CSV, everything',
-       value => 'csv, everything',
-       description => '',
-       mode => 'csv',
-       show => 'all',
-       show_links => 'no',
-           },
-     { name  => 'CSV, scores only',
-       value => 'csv, scores only',
-       description => '',
-       mode => 'csv',
-       show => 'scores',
-       show_links => 'no',
-           },
-     { name  => 'CSV, totals',
-       value => 'csv, totals',
-       description => '',
+   },
+     { name  => 'CSV',
+       value => 'csv',
+       description => 'Output a comma seperated values file suitable for '.
+           'import into a spreadsheet program.  Using this method as opposed '.
+           'to Excel output allows you to organize your data before importing'.
+           ' it into a spreadsheet program.',
        mode => 'csv',
-       show => 'totals',
        show_links => 'no',
            },
      );
 
 sub OutputDescriptions {
     my $Str = '';
-    $Str .= "<h2>Output Modes</h2>\n";
+    $Str .= "<h2>Output Formats</h2>\n";
     $Str .= "<dl>\n";
     foreach my $outputmode (@OutputOptions) {
 	$Str .="    <dt>".$outputmode->{'name'}."</dt>\n";
@@ -386,10 +425,12 @@ sub OutputDescriptions {
 
 sub CreateAndParseOutputSelector {
     my $Str = '';
-    my $elementname = 'outputmode';
+    my $elementname = 'chartoutputmode';
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+                                            [$elementname]);
     #
     # Format for output options is 'mode, restrictions';
-    my $selected = 'html, with links';
+    my $selected = 'html, without links';
     if (exists($ENV{'form.'.$elementname})) {
         if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
             $selected = $ENV{'form.'.$elementname}->[0];
@@ -401,11 +442,9 @@ sub CreateAndParseOutputSelector {
     # Set package variables describing output mode
     $show_links  = 'no';
     $output_mode = 'html';
-    $show        = 'all';
     foreach my $option (@OutputOptions) {
         next if ($option->{'value'} ne $selected);
         $output_mode = $option->{'mode'};
-        $show        = $option->{'show'};
         $show_links  = $option->{'show_links'};
     }
 
@@ -415,10 +454,124 @@ sub CreateAndParseOutputSelector {
     foreach my $option (@OutputOptions) {
         $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
         $Str .= " selected " if ($option->{'value'} eq $selected);
-        $Str .= ">".$option->{'name'}."<\/option>";
+        $Str .= ">".&mt($option->{'name'})."<\/option>";
+    }
+    $Str .= "\n</select>";
+    return $Str;
+}
+
+##
+## Data selector stuff
+##
+my @OutputDataOptions =
+    (
+     { name  => 'Scores Summary',
+       base  => 'scores',
+       value => 'sum and total',
+       scores => 1,
+       tries  => 0,
+       every_problem => 0,
+       sequence_sum => 1,
+       sequence_max => 1,
+       grand_total => 1,
+       summary_table => 1,
+       maximum_row => 1,
+       shortdesc => 'Total Score and Maximum Possible for each '.
+           'Sequence or Folder',
+       longdesc => 'The score of each student as well as the '.
+           ' maximum possible on each Sequence or Folder.',
+       },
+     { name  => 'Scores Per Problem',
+       base  => 'scores',
+       value => 'scores',
+       scores => 1,
+       tries  => 0,
+       correct => 0,
+       every_problem => 1,
+       sequence_sum => 1,
+       sequence_max => 1,
+       grand_total => 1,
+       summary_table => 1,
+       maximum_row => 1,
+       shortdesc => 'Score on each Problem Part',
+       longdesc =>'The students score on each problem part, computed as'.
+           'the part weight * part awarded',
+       },
+     { name  =>'Tries',
+       base  =>'tries',
+       value => 'tries',
+       scores => 0,
+       tries  => 1,
+       correct => 0,
+       every_problem => 1,
+       sequence_sum => 0,
+       sequence_max => 0,
+       grand_total => 0,
+       summary_table => 0,
+       maximum_row => 0,
+       shortdesc => 'Number of Tries before success on each Problem Part',
+       longdesc =>'The number of tries before success on each problem part.',
+       },
+     { name  =>'Parts Correct',
+       base  =>'tries',
+       value => 'parts correct total',
+       scores => 0,
+       tries  => 0,
+       correct => 1,
+       every_problem => 1,
+       sequence_sum => 1,
+       sequence_max => 1,
+       grand_total => 1,
+       summary_table => 1,
+       maximum_row => 0,
+       shortdesc => 'Number of Problem Parts completed successfully.',
+       longdesc => 'The Number of Problem Parts completed successfully and '.
+           'the maximum possible for each student',
+       },
+     );
+
+sub HTMLifyOutputDataDescriptions {
+    my $Str = '';
+    $Str .= "<h2>Output Data</h2>\n";
+    $Str .= "<dl>\n";
+    foreach my $option (@OutputDataOptions) {
+        $Str .= '    <dt>'.$option->{'name'}.'</dt>';
+        $Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
+    }
+    $Str .= "</dl>\n";
+    return $Str;
+}
+
+sub CreateAndParseOutputDataSelector {
+    my $Str = '';
+    my $elementname = 'chartoutputdata';
+    #
+    my $selected = 'scores';
+    if (exists($ENV{'form.'.$elementname})) {
+        if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) {
+            $selected = $ENV{'form.'.$elementname}->[0];
+        } else {
+            $selected = $ENV{'form.'.$elementname};
+        }
+    }
+    #
+    $chosen_output = $OutputDataOptions[0];
+    foreach my $option (@OutputDataOptions) {
+        if ($option->{'value'} eq $selected) {
+            $chosen_output = $option;
+        }
+    }
+    #
+    # Build the form element
+    $Str = qq/<select size="5" name="$elementname">/;
+    foreach my $option (@OutputDataOptions) {
+        $Str .= "\n".'    <option value="'.$option->{'value'}.'"';
+        $Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
+        $Str .= ">".&mt($option->{'name'})."<\/option>";
     }
     $Str .= "\n</select>";
     return $Str;
+
 }
 
 #######################################################
@@ -446,12 +599,23 @@ Return a line of the chart for a student
     my $padding;
     my $count;
 
+    my $nodata_count; # The number of students for which there is no data
+    my %prog_state;   # progress state used by loncommon PrgWin routines
+
 sub html_initialize {
     my ($r) = @_;
     #
     $padding = ' 'x3;
     $count = 0;
+    $nodata_count = 0;
+    undef(%prog_state);
     #
+    $r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
+              "&nbsp;&nbsp;".localtime(time)."</h3>");
+
+    if ($chosen_output->{'base'} !~ /^final table/) {
+        $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");        
+    }
     my $Str = "<pre>\n";
     # First, the @StudentData fields need to be listed
     my @to_show = &get_student_fields_to_show();
@@ -461,14 +625,44 @@ sub html_initialize {
         my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
         $Str .= $title.' 'x($width-$base).$padding;
     }
-    # Now the selected sequences need to be listed
-    foreach my $sequence (&get_sequences_to_show) {
-        my $title = $sequence->{'title'};
-        my $base  = $sequence->{'base_width'};
-        my $width = $sequence->{'width'};
-        $Str .= $title.' 'x($width-$base).$padding;
+    #
+    # Compute the column widths and output the sequence titles
+    foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
+        #
+        # Comptue column widths
+        $sequence->{'width_sum'} = 0;
+        if ($chosen_output->{'sequence_sum'}) {
+            # Use 3 digits for the sum
+            $sequence->{'width_sum'} = 3;
+        }
+        if ($chosen_output->{'sequence_max'}) {
+            if ($sequence->{'width_sum'}>0) {
+                # One digit for the '/'
+                $sequence->{'width_sum'} +=1;
+            }
+            # Use 3 digits for the total
+            $sequence->{'width_sum'}+=3;
+        }
+	#
+        if ($chosen_output->{'every_problem'}) {
+            # one problem per digit
+            $sequence->{'width_problem'} = $sequence->{'num_assess_parts'};
+        } else {
+            $sequence->{'width_problem'} = 0;
+        }
+        $sequence->{'width_total'} = $sequence->{'width_problem'} + 
+                                     $sequence->{'width_sum'};
+        if ($sequence->{'width_total'} < length(&HTML::Entities::decode($sequence->{'title'}))) {
+            $sequence->{'width_total'} = length(&HTML::Entities::decode($sequence->{'title'}));
+        }
+        #
+        # Output the sequence titles
+        $Str .= 
+            $sequence->{'title'}.' 'x($sequence->{'width_total'}-
+                                      length($sequence->{'title'})
+                                      ).$padding;
     }
-    $Str .= "total (of shown problems)</pre>\n";
+    $Str .= "total</pre>\n";
     $Str .= "<pre>";
     $r->print($Str);
     $r->rflush();
@@ -499,6 +693,7 @@ sub html_outputstudent {
         %StudentsData = @tmp;
     }
     if (scalar(@tmp) < 1) {
+        $nodata_count++;
         $Str .= '<font color="blue">No Course Data</font>'."\n";
         $r->print($Str);
         $r->rflush();
@@ -508,25 +703,35 @@ sub html_outputstudent {
     # By sequence build up the data
     my $studentstats;
     my $PerformanceStr = '';
-    foreach my $seq (&get_sequences_to_show) {
-        my ($performance,$score,$seq_max) =
-            &StudentPerformanceOnSequence($student,\%StudentsData,
-                                          $seq,$show_links);
-        my $ratio = $score.'/'.$seq_max;
-        #
-        if ($show eq 'totals') {
-            $performance = ' 'x(length($seq_max)-length($score)).$ratio;
-            $performance .= ' 'x($seq->{'width'}-length($performance));
-        } elsif ($show eq 'scores') {
-            $performance = $score;
-            $performance .= ' 'x($seq->{'width'}-length($performance));
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        my ($performance,$performance_length,$score,$seq_max,$rawdata);
+        if ($chosen_output->{'tries'}) {
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentTriesOnSequence($student,\%StudentsData,
+                                        $seq,$show_links);
         } else {
-            # Pad with extra spaces
-            $performance .= ' 'x($seq->{'width'}-$seq_max-
-                                 length($ratio)
-                                 ).$ratio;
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentPerformanceOnSequence($student,\%StudentsData,
+                                              $seq,$show_links);
+        }
+        my $ratio='';
+        if ($chosen_output->{'sequence_sum'}) {
+            $ratio .= sprintf("%3d",$score);
+        }
+        if ($chosen_output->{'sequence_max'}) {
+            if ($chosen_output->{'sequence_sum'}) {
+                $ratio .= '/';
+            }
+            $ratio .= sprintf("%3d",$seq_max);
         }
         #
+        if (! $chosen_output->{'every_problem'}) {
+            $performance = '';
+	    $performance_length=0;
+        }
+        $performance .= ' 'x($seq->{'width_total'}-$performance_length-$seq->{'width_sum'}).
+            $ratio;
+        #
         $Str .= $performance.$padding;
         #
         $studentstats->{$seq->{'symb'}}->{'score'}= $score;
@@ -537,12 +742,15 @@ sub html_outputstudent {
     my ($score,$max) = (0,0);
     while (my ($symb,$seq_stats) = each (%{$studentstats})) {
         $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
-        $Statistics->{$symb}->{'max'}   += $seq_stats->{'max'};
+        if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
+            $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
+        }
         $score += $seq_stats->{'score'};
         $max   += $seq_stats->{'max'};
     }
     $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
     $Str .= " \n";
+    #
     $r->print($Str);
     #
     $r->rflush();
@@ -551,85 +759,83 @@ sub html_outputstudent {
 
 sub html_finish {
     my ($r) = @_;
+    #
+    # Check for suppressed output and close the progress window if so
     $r->print("</pre>\n"); 
+    if ($chosen_output->{'summary_table'}) {
+        if ($single_student_mode) {
+            $r->print(&SingleStudentTotal());
+        } else {
+            $r->print(&StudentAverageTotal());
+        }
+    }
     $r->rflush();
     return;
 }
 
-}
-
-#######################################################
-#######################################################
-
-=pod
-
-=head2 Multi-Sheet EXCEL subroutines
-
-=item &multi_sheet_excel_initialize($r)
-
-=item &multi_sheet_excel_outputstudent($r,$student)
-
-=item &multi_sheet_excel_finish($r)
-
-=cut
-
-#######################################################
-#######################################################
-{
-
-sub multi_sheet_excel_initialize {
-    my ($r)=@_;
-    $r->print("<h1>Not yet implemented</h1>");
-    # 
-    # Estimate the size of the file.  We would like to have < 5 megs of data.
-    my $max_size = 5000000;
-    my $num_students  = scalar(@Apache::lonstatistics::Students);
-    my $num_sequences = 0;
-    my $num_data_per_part  = 2; # 'status' and 'numtries'
-    my $fields_per_student = scalar(&get_student_fields_to_show());
-    my $bytes_per_field    = 20; # Back of the envelope calculation
-    foreach my $seq (&get_sequences_to_show) {
-        $num_sequences++ if ($seq->{'num_assess'} > 0);
-        $fields_per_student += $num_data_per_part * $seq->{'num_assess_parts'};
-    }
-    my $size_estimate = $fields_per_student*$num_students*$bytes_per_field;
-    #
-    # Compute number of workbooks
-    my $num_workbooks = 1;
-    if ($size_estimate > $max_size) { # try to stay under 5 megs
-        $num_workbooks += int($size_estimate / $max_size);
-    }
-    if ($show eq 'by section') {
-        if (@Apache::lonstatistics::SelectedSections > 1 && 
-            $Apache::lonstatistics::SelectedSections[0] ne 'all') {
-            $num_workbooks = scalar(@Apache::lonstatistics::SelectedSections);
+sub StudentAverageTotal {
+    my $Str = "<h3>Summary Tables</h3>\n";
+    my $num_students = scalar(@Apache::lonstatistics::Students);
+    my $total_ave = 0;
+    my $total_max = 0;
+    $Str .= '<table border=2 cellspacing="1">'."\n";
+    $Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        my $ave;
+        if ($num_students > $nodata_count) {
+            $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/
+                            ($num_students-$nodata_count)))/100;
         } else {
-            # @Apache::lonstatistics::Sections contains 'all' as well.
-            $num_workbooks = scalar(@Apache::lonstatistics::Sections) - 1;
+            $ave = 0;
         }
+        $total_ave += $ave;
+        my $max = $Statistics->{$seq->{'symb'}}->{'max'};
+        $total_max += $max;
+        $ave = sprintf("%.2f",$ave);
+        $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
+            '<td align="right">'.$ave.'&nbsp;</td>'.
+            '<td align="right">'.$max.'&nbsp;'.'</td></tr>'."\n";
     }
-    
-    $r->print("Maximum allowed size: ".$max_size." bytes<br />");
-    $r->print("Number of students: ".$num_students."<br />");
-    $r->print("Number of fields per student: ".$fields_per_student."<br />");
-    $r->print("Total number of fields: ".($fields_per_student*$num_students).
-              "<br />");
-    $r->print("Bytes per field: ".$bytes_per_field." (estimated)"."<br />");
-    $r->print("Estimated size: ".$size_estimate." bytes<br />");
-    $r->print("Number of workbooks: ".$num_workbooks."<br />");
-    $r->rflush();
-    return;
+    $total_ave = sprintf('%.2f',$total_ave); # only two digit
+    $Str .= "</table>\n";
+    $Str .= '<table border=2 cellspacing="1">'."\n";
+    $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
+        "<th>Maximum</th></tr>\n";
+    $Str .= '<tr>'.
+        '<td align="right">'.($num_students-$nodata_count).'</td>'.
+        '<td align="right">'.$total_ave.'&nbsp;'.'</td>'.
+        '<td align="right">'.$total_max.'&nbsp;'.'</td>';
+    $Str .= "</table>\n";
+    return $Str;
 }
 
-sub multi_sheet_excel_outputstudent {
-    my ($r,$student) = @_;
+sub SingleStudentTotal {
+    my $student = &Apache::lonstatistics::current_student();
+    my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
+        $student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
+    $Str .= '<table border=2 cellspacing="1">'."\n";
+    $Str .= 
+        "<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\n";
+    my $total = 0;
+    my $total_max = 0;
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        my $value = $Statistics->{$seq->{'symb'}}->{'score'};
+        my $max = $Statistics->{$seq->{'symb'}}->{'max'};
+        $Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
+            '<td align="right">'.$value.'</td>'.
+                '<td align="right">'.$max.'</td></tr>'."\n";
+        $total += $value;
+        $total_max +=$max;
+    }
+    $Str .= '<tr><td><b>Total</b></td>'.
+        '<td align="right">'.$total.'</td>'.
+        '<td align="right">'.$total_max."</td></tr>\n";
+    $Str .= "</table>\n";
+    return $Str;
 }
 
-sub multi_sheet_excel_finish {
-    my ($r) = @_;
 }
 
-}
 #######################################################
 #######################################################
 
@@ -656,12 +862,69 @@ my $filename;
 my $rows_output;
 my $cols_output;
 
-my $num_students;
-my $start_time;
+my %prog_state; # progress window state
+my $request_aborted;
+
+my $total_formula;
 
 sub excel_initialize {
     my ($r) = @_;
     #
+    undef ($excel_sheet);
+    undef ($excel_workbook);
+    undef ($filename);
+    undef ($rows_output);
+    undef ($cols_output);
+    undef (%prog_state);
+    undef ($request_aborted);
+    undef ($total_formula);
+    #
+    my $total_columns = scalar(&get_student_fields_to_show());
+    my $num_students = scalar(@Apache::lonstatistics::Students);
+    #
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        if ($chosen_output->{'every_problem'}) {
+            $total_columns += $seq->{'num_assess_parts'};
+        }
+        # Add 2 because we need a 'sequence_sum' and 'total' column for each
+        $total_columns += 2;
+    }
+    if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
+        $r->print(<<END);
+<h2>Unable to Complete Request</h2>
+<p>
+LON-CAPA is unable to produce your Excel spreadsheet because your selections
+will result in more than 255 columns.  Excel allows only 255 columns in a
+spreadsheet.
+</p><p>
+You may consider reducing the number of <b>Sequences or Folders</b> you
+have selected.  
+</p><p>
+LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
+summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
+</p>
+END
+       $request_aborted = 1;
+    }
+    if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
+        $r->print(<<END);
+<h2>Unable to Complete Request</h2>
+<p>
+LON-CAPA is unable to produce your Excel spreadsheet because your selections
+will result in more than 255 columns.  Excel allows only 255 columns in a
+spreadsheet.
+</p><p>
+You may consider reducing the number of <b>Sequences or Folders</b> you
+have selected.  
+</p><p>
+LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
+<b>Scores Summary</b> data.
+</p>
+END
+       $request_aborted = 1;
+    }
+    return if ($request_aborted);
+    #
     $filename = '/prtspool/'.
         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
             time.'_'.rand(1000000000).'.xls';
@@ -672,8 +935,23 @@ sub excel_initialize {
     $rows_output = 0;
     $cols_output = 0;
     #
-    $num_students = 0;
-    $start_time   = time;
+    # Determine rows 
+    my $header_row = $rows_output++;
+    my $description_row = $rows_output++;
+    $rows_output++;        # blank row
+    my $summary_header_row;
+    if ($chosen_output->{'summary_table'}) {
+        $summary_header_row = $rows_output++;
+        $rows_output+= scalar(&Apache::lonstatistics::Sequences_with_Assess());
+        $rows_output++;
+    }
+    my $sequence_name_row = $rows_output++;
+    my $resource_name_row = $rows_output++;
+    my $maximum_data_row = $rows_output++;
+    if (! $chosen_output->{'maximum_row'}) {
+        $rows_output--;
+    }
+    my $first_data_row = $rows_output++;
     #
     # Create sheet
     $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
@@ -693,16 +971,17 @@ sub excel_initialize {
     # File::Temp is used to determine the temporary directory.
     $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
     #
+    my $format = &Apache::loncommon::define_excel_formats($excel_workbook);
+    #
     # Add a worksheet
     my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
-    if (length($sheetname) > 31) {
-        $sheetname = substr($sheetname,0,31);
-    }
+    $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
     $excel_sheet = $excel_workbook->addworksheet($sheetname);
     #
     # Put the course description in the header
-    $excel_sheet->write($rows_output,$cols_output++,
-                   $ENV{'course.'.$ENV{'request.course.id'}.'.description'});
+    $excel_sheet->write($header_row,$cols_output++,
+                   $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
+                        $format->{'h1'});
     $cols_output += 3;
     #
     # Put a description of the sections listed
@@ -722,53 +1001,268 @@ sub excel_initialize {
             $sectionstring = "Section ".$Sections[0];
         }
     }
-    $excel_sheet->write($rows_output,$cols_output++,$sectionstring);
+    $excel_sheet->write($header_row,$cols_output++,$sectionstring,
+                        $format->{'h3'});
     $cols_output += scalar(@Sections);
     #
     # Put the date in there too
-    $excel_sheet->write($rows_output,$cols_output++,
-                        'Compiled on '.localtime(time));
+    $excel_sheet->write($header_row,$cols_output++,
+                        'Compiled on '.localtime(time),$format->{'h3'});
     #
-    $rows_output++;
+    $cols_output = 0;
+    $excel_sheet->write($description_row,$cols_output++,
+                        $chosen_output->{'shortdesc'},
+                        $format->{'h3'});
+    ##############################################
+    # Output headings for the raw data
+    ##############################################
     #
     # Add the student headers
     $cols_output = 0;
     foreach my $field (&get_student_fields_to_show()) {
-        $excel_sheet->write($rows_output,$cols_output++,$field);
+        $excel_sheet->write($resource_name_row,$cols_output++,$field,
+                            $format->{'bold'});
     }
     #
-    # Add the Sequence Headers
-    foreach my $seq (&get_sequences_to_show) {
-        $excel_sheet->write($rows_output,$cols_output,$seq->{'title'});
-        if ($show eq 'totals') {
-            $excel_sheet->write($rows_output+1,$cols_output,'score');
-            $excel_sheet->write($rows_output+1,$cols_output+1,'maximum');
-            $cols_output += 2;
+    # Add the remaining column headers
+    my $total_formula_string = '=0';
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        $excel_sheet->write($sequence_name_row,,
+                            $cols_output,$seq->{'title'},$format->{'bold'});
+        # Determine starting cell
+        $seq->{'Excel:startcell'}=
+            &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+            ($first_data_row,$cols_output);
+        $seq->{'Excel:startcol'}=$cols_output;
+        my $count = 0;
+        if ($chosen_output->{'every_problem'}) {
+            # Put the names of the problems and parts into the sheet
+            foreach my $res (@{$seq->{'contents'}}) {
+                if ($res->{'type'} ne 'assessment'  || 
+                    ! exists($res->{'parts'})       ||
+                    ref($res->{'parts'}) ne 'ARRAY' ||
+                    scalar(@{$res->{'parts'}}) < 1) {
+                    next;
+                }
+                if (scalar(@{$res->{'parts'}}) > 1) {
+                    foreach my $part (@{$res->{'parts'}}) {
+                        $excel_sheet->write($resource_name_row,
+                                            $cols_output++,
+                                            $res->{'title'}.' part '.$part,
+                                            $format->{'bold'});
+                    }
+                } else {
+                    $excel_sheet->write($resource_name_row,
+                                        $cols_output++,
+                                        $res->{'title'},$format->{'bold'});
+                }
+                $count++;
+            }
+        }
+        # Determine ending cell
+        if ($count <= 1) {
+            $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
+            $seq->{'Excel:endcol'}  = $seq->{'Excel:startcol'};
         } else {
-            $cols_output++;
+            $seq->{'Excel:endcell'} = 
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                ($first_data_row,$cols_output-1);
+            $seq->{'Excel:endcol'} = $cols_output-1;
+        }
+        # Create the formula for summing up this sequence
+        if (! exists($seq->{'Excel:endcell'}) ||
+            ! defined($seq->{'Excel:endcell'})) {
+            $seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
+        }
+        $seq->{'Excel:sum'}= $excel_sheet->store_formula
+            ('=SUM('.$seq->{'Excel:startcell'}.
+             ':'.$seq->{'Excel:endcell'}.')');
+        # Determine cell the score is held in
+        $seq->{'Excel:scorecell'} = 
+            &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+            ($first_data_row,$cols_output);
+        $seq->{'Excel:scorecol'}=$cols_output;
+        if ($chosen_output->{'base'} eq 'parts correct total') {
+            $excel_sheet->write($resource_name_row,$cols_output++,
+                                'parts correct',
+                                $format->{'bold'});
+        } elsif ($chosen_output->{'sequence_sum'}) {
+            if ($chosen_output->{'correct'}) {
+                # Only reporting the number correct, so do not call it score
+                $excel_sheet->write($resource_name_row,$cols_output++,
+                                    'sum',
+                                    $format->{'bold'});
+            } else {
+                $excel_sheet->write($resource_name_row,$cols_output++,
+                                    'score',
+                                    $format->{'bold'});
+            }
+        }
+        #
+        $total_formula_string.='+'.
+            &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+            ($first_data_row,$cols_output-1);
+        if ($chosen_output->{'sequence_max'}) {
+            $excel_sheet->write($resource_name_row,$cols_output++,
+                                'maximum',
+                                $format->{'bold'});
         }
     }
-    #
-    # Bookkeeping
-    if ($show eq 'totals') {
-        $rows_output += 2;
-    } else {
-        $rows_output += 1;
+    if ($chosen_output->{'grand_total'}) {
+        $excel_sheet->write($resource_name_row,$cols_output++,'Total',
+                            $format->{'bold'});
+    }
+    $total_formula = $excel_sheet->store_formula($total_formula_string);
+    ##############################################
+    # Output a row for MAX, if appropriate
+    ##############################################
+    if ($chosen_output->{'maximum_row'}) {
+        $cols_output = 0;
+        foreach my $field (&get_student_fields_to_show()) {
+            if ($field eq 'username' || $field eq 'fullname' || 
+                $field eq 'id') {
+                $excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
+                                    $format->{'bold'});
+            } else {
+                $excel_sheet->write($maximum_data_row,$cols_output++,'');
+            }
+        }
+        #
+        # Add the maximums for each sequence or assessment
+        my %total_cell_translation;
+        foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+            $cols_output=$seq->{'Excel:startcol'};
+            $total_cell_translation{$seq->{'Excel:scorecell'}} = 
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                ($maximum_data_row,$seq->{'Excel:scorecol'});
+            my $weight;
+            my $max = 0;
+            foreach my $resource (@{$seq->{'contents'}}) {
+                next if ($resource->{'type'} ne 'assessment');
+                foreach my $part (@{$resource->{'parts'}}) {
+                    $weight = 1;
+                    if ($chosen_output->{'scores'}) {
+                        $weight = &Apache::lonnet::EXT
+                            ('resource.'.$part.'.weight',$resource->{'symb'},
+                             undef,undef,undef);
+                        if (!defined($weight) || ($weight eq '')) { 
+                            $weight=1;
+                        }
+                    }
+                    if ($chosen_output->{'scores'} &&
+                        $chosen_output->{'every_problem'}) {
+                        $excel_sheet->write($maximum_data_row,$cols_output++,
+                                            $weight);
+                    }
+                    $max += $weight;
+                }
+            } 
+            #
+            if ($chosen_output->{'sequence_sum'} && 
+                $chosen_output->{'every_problem'}) {
+                my %replaceCells;
+                $replaceCells{$seq->{'Excel:startcell'}} = 
+                    &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                    ($maximum_data_row,$seq->{'Excel:startcol'});
+                $replaceCells{$seq->{'Excel:endcell'}} = 
+                    &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                    ($maximum_data_row,$seq->{'Excel:endcol'});
+                $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
+                                             $seq->{'Excel:sum'},undef,
+                                             %replaceCells);
+            } elsif ($chosen_output->{'sequence_sum'}) {
+                $excel_sheet->write($maximum_data_row,$cols_output++,$max);
+            }
+            if ($chosen_output->{'sequence_max'}) {
+                $excel_sheet->write($maximum_data_row,$cols_output++,$max);
+            }
+            #
+        }
+        if ($chosen_output->{'grand_total'}) {
+            $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
+                                         $total_formula,undef,
+                                         %total_cell_translation);
+        }
+    } # End of MAXIMUM row output  if ($chosen_output->{'maximum_row'}) {
+    $rows_output = $first_data_row;
+    ##############################################
+    # Output summary table, which actually is above the sequence name row.
+    ##############################################
+    if ($chosen_output->{'summary_table'}) {
+        $cols_output = 0;
+        $excel_sheet->write($summary_header_row,$cols_output++,
+                            'Summary Table',$format->{'bold'});
+        if ($chosen_output->{'maximum_row'}) {
+            $excel_sheet->write($summary_header_row,$cols_output++,
+                                'Maximum',$format->{'bold'});
+        }
+        $excel_sheet->write($summary_header_row,$cols_output++,
+                            'Average',$format->{'bold'});
+        $excel_sheet->write($summary_header_row,$cols_output++,
+                            'Median',$format->{'bold'});
+        $excel_sheet->write($summary_header_row,$cols_output++,
+                            'Std Dev',$format->{'bold'});
+        my $row = $summary_header_row+1;
+        foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+            $cols_output = 0;
+            $excel_sheet->write($row,$cols_output++,
+                                $seq->{'title'},
+                                $format->{'bold'});
+            if ($chosen_output->{'maximum_row'}) {
+                $excel_sheet->write
+                    ($row,$cols_output++,
+                     '='.
+                     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                     ($maximum_data_row,$seq->{'Excel:scorecol'})
+                     );
+            }
+            my $range = 
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                ($first_data_row,$seq->{'Excel:scorecol'}).
+                ':'.
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                ($first_data_row+$num_students-1,$seq->{'Excel:scorecol'});
+            $excel_sheet->write($row,$cols_output++,
+                                '=AVERAGE('.$range.')');
+            $excel_sheet->write($row,$cols_output++,
+                                '=MEDIAN('.$range.')');
+            $excel_sheet->write($row,$cols_output++,
+                                '=STDEV('.$range.')');
+            $row++;
+        }
     }
+    ##############################################
+    #   Take care of non-excel initialization
+    ##############################################
     #
     # Let the user know what we are doing
     my $studentcount = scalar(@Apache::lonstatistics::Students); 
-    $r->print("<h1>Compiling Excel spreadsheet for ".
-              $studentcount.' student');
-    $r->print('s') if ($studentcount > 1);
-    $r->print("</h1>\n");
+    if ($ENV{'form.SelectedStudent'}) {
+        $studentcount = '1';
+    }
+    if ($studentcount > 1) {
+        $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
+                             $studentcount)."</h1>\n");
+    } else {
+        $r->print('<h1>'.
+                  &mt('Compiling Excel spreadsheet for 1 student').
+                  "</h1>\n");
+    }
     $r->rflush();
     #
+    # Initialize progress window
+    %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
+        ($r,'Excel File Compilation Status',
+         'Excel File Compilation Progress', $studentcount);
+    #
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
+                                          'Processing first student');
     return;
 }
 
 sub excel_outputstudent {
     my ($r,$student) = @_;
+    return if ($request_aborted);
     return if (! defined($excel_sheet));
     $cols_output=0;
     #
@@ -789,52 +1283,84 @@ sub excel_outputstudent {
     }
     #
     # Write out sequence scores and totals data
-    foreach my $seq (&get_sequences_to_show) {
-        my ($performance,$score,$seq_max) =
-            &StudentPerformanceOnSequence($student,\%StudentsData,
-                                          $seq,'no');
-        if ($show eq 'totals' || $show eq 'scores') {
+    my %total_cell_translation;
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        $cols_output = $seq->{'Excel:startcol'};
+        # Keep track of cells to translate in total cell
+        $total_cell_translation{$seq->{'Excel:scorecell'}} = 
+            &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                        ($rows_output,$seq->{'Excel:scorecol'});
+        #
+        my ($performance,$performance_length,$score,$seq_max,$rawdata);
+        if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentTriesOnSequence($student,\%StudentsData,
+                                        $seq,'no');
+        } else {
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentPerformanceOnSequence($student,\%StudentsData,
+                                              $seq,'no');
+        } 
+        if ($chosen_output->{'every_problem'}) {
+            if ($chosen_output->{'correct'}) {
+                # only indiciate if each item is correct or not
+                foreach my $value (@$rawdata) {
+                    # nonzero means correct
+                    $value = 1 if ($value > 0);
+                    $excel_sheet->write($rows_output,$cols_output++,$value);
+                }
+            } else {
+                foreach my $value (@$rawdata) {
+                    $excel_sheet->write($rows_output,$cols_output++,$value);
+                }
+            }
+        }
+        if ($chosen_output->{'sequence_sum'} && 
+            $chosen_output->{'every_problem'}) {
+            # Write a formula for the sum of this sequence
+            my %replaceCells;
+            $replaceCells{$seq->{'Excel:startcell'}} = 
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                            ($rows_output,$seq->{'Excel:startcol'});
+            $replaceCells{$seq->{'Excel:endcell'}} = 
+                &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
+                            ($rows_output,$seq->{'Excel:endcol'});
+            # The undef is for the format
+            if (scalar(keys(%replaceCells)) == 1) {
+                $excel_sheet->repeat_formula($rows_output,$cols_output++,
+                                             $seq->{'Excel:sum'},undef,
+                                             %replaceCells,%replaceCells);
+            } else {
+                $excel_sheet->repeat_formula($rows_output,$cols_output++,
+                                             $seq->{'Excel:sum'},undef,
+                                             %replaceCells);
+            }
+        } elsif ($chosen_output->{'sequence_sum'}) {
             $excel_sheet->write($rows_output,$cols_output++,$score);
         }
-        if ($show eq 'totals') {
+        if ($chosen_output->{'sequence_max'}) {
             $excel_sheet->write($rows_output,$cols_output++,$seq_max);
         }
     }
     #
+    if ($chosen_output->{'grand_total'}) {
+        $excel_sheet->repeat_formula($rows_output,$cols_output++,
+                                     $total_formula,undef,
+                                     %total_cell_translation);
+    }
+    #
     # Bookkeeping
     $rows_output++; 
     $cols_output=0;
     #
-    # Time estimate
-    $num_students++;
-    if ($num_students % 10 == 0) {
-        my $time_est = (time - $start_time)/$num_students * 
-            (scalar(@Apache::lonstatistics::Students)-$num_students);
-        $time_est = int($time_est);
-        if (int ($time_est/60) > 0) {
-            my $min = int($time_est/60);
-            my $sec = $time_est % 60;
-            $time_est = $min.' minutes';
-            if ($sec > 1) {
-                $time_est.= ', '.$sec.' seconds';
-            } elsif ($sec > 0) {
-                $time_est.= ', '.$sec.' second';
-            }
-        } else {
-            $time_est .= ' seconds';
-        }
-        $r->print($num_students.' out of '.
-                  (scalar(@Apache::lonstatistics::Students)).
-                  " students processed.  ".
-                  $time_est." remain.  Elapsed: ".(time - $start_time).
-                  "<br />\n");
-        $r->rflush();
-    }
+    # Update the progress window
+    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
     return;
 }
 
 sub excel_finish {
     my ($r) = @_;
+    return if ($request_aborted);
     return if (! defined($excel_sheet));
     #
     # Write the excel file
@@ -843,14 +1369,12 @@ sub excel_finish {
     #
     return if($c->aborted());
     #
+    # Close the progress window
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+    #
     # Tell the user where to get their excel file
-    $r->print('<br /><br />'.
+    $r->print('<br />'.
               '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
-    my $total_time = time - $start_time;
-    if (int ($total_time / 60) > 0) {
-        $total_time = int($total_time/60).' minutes, '.($total_time % 60);
-    }
-    $r->print('<br />'.$total_time.' seconds total');
     $r->rflush();
     return;
 }
@@ -875,18 +1399,197 @@ sub excel_finish {
 #######################################################
 {
 
+my $outputfile;
+my $filename;
+my $request_aborted;
+my %prog_state; # progress window state
+
 sub csv_initialize{
     my ($r) = @_;
-    $r->print("<h1>Not implemented yet</h1>");
+    # 
+    # Clean up
+    undef($outputfile);
+    undef($filename);
+    undef($request_aborted);
+    undef(%prog_state);
+    #
+    # Deal with unimplemented requests
+    $request_aborted = undef;
+    if ($chosen_output->{'base'} =~ /final table/) {
+        $r->print(<<END);
+<h2>Unable to Complete Request</h2>
+<p>
+The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
+</p>
+END
+       $request_aborted = 1;
+    }
+    return if ($request_aborted);
+    #
+    # Initialize progress window
+    my $studentcount = scalar(@Apache::lonstatistics::Students);
+    %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
+        ($r,'CSV File Compilation Status',
+         'CSV File Compilation Progress', $studentcount);
+    #
+    # Open a file
+    $filename = '/prtspool/'.
+        $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
+            time.'_'.rand(1000000000).'.csv';
+    unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
+        $r->log_error("Couldn't open $filename for output $!");
+        $r->print("Problems occured in writing the csv file.  ".
+                  "This error has been logged.  ".
+                  "Please alert your LON-CAPA administrator.");
+        $outputfile = undef;
+    }
+    #
+    # Datestamp
+    my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
+    print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
+        '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
+            "\n";
+    #
+    # Print out the headings
+    my $sequence_row = '';
+    my $resource_row = undef;
+    foreach my $field (&get_student_fields_to_show()) {
+        $sequence_row .='"",';
+        $resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
+    }
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        $sequence_row .= '"'.
+            &Apache::loncommon::csv_translate($seq->{'title'}).'",';
+        my $count = 0;
+        if ($chosen_output->{'every_problem'}) {
+            foreach my $res (@{$seq->{'contents'}}) {
+                if ($res->{'type'} ne 'assessment'  || 
+                    ! exists($res->{'parts'})       ||
+                    ref($res->{'parts'}) ne 'ARRAY' ||
+                    scalar(@{$res->{'parts'}}) < 1) {
+                    next;
+                }
+                foreach my $part (@{$res->{'parts'}}) {
+                    $resource_row .= '"'.
+                        &Apache::loncommon::csv_translate($res->{'title'}.
+                                                          ', Part '.$part
+                                                          ).'",';
+                    $count++;
+                }
+            }
+        }
+        $sequence_row.='"",'x$count;
+        if ($chosen_output->{'sequence_sum'}) {
+            if($chosen_output->{'correct'}) {
+                $resource_row .= '"sum",';
+            } else {
+                $resource_row .= '"score",';
+            }
+        }
+        if ($chosen_output->{'sequence_max'}) {
+            $sequence_row.= '"",';
+            $resource_row .= '"maximum possible",';
+        }
+    }
+    if ($chosen_output->{'grand_total'}) {
+        $sequence_row.= '"",';
+        $resource_row.= '"Total",';
+    } 
+    chomp($sequence_row);
+    chomp($resource_row);
+    print $outputfile $sequence_row."\n";
+    print $outputfile $resource_row."\n";
     return;
 }
 
 sub csv_outputstudent {
     my ($r,$student) = @_;
+    return if ($request_aborted);
+    return if (! defined($outputfile));
+    my $Str = '';
+    #
+    # Output student fields
+    my @to_show = &get_student_fields_to_show();
+    foreach my $field (@to_show) {
+        $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",';
+    }
+    #
+    # Get student assessment data
+    my %StudentsData;
+    my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'},
+                                                        $student->{'domain'},
+                                                        undef,
+                                                   $ENV{'request.course.id'});
+    if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
+        %StudentsData = @tmp;
+    }
+    #
+    # Output performance data
+    my $total = 0;
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        my ($performance,$performance_length,$score,$seq_max,$rawdata);
+        if ($chosen_output->{'tries'}){
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentTriesOnSequence($student,\%StudentsData,
+                                        $seq,'no');
+        } else {
+            ($performance,$performance_length,$score,$seq_max,$rawdata) =
+                &StudentPerformanceOnSequence($student,\%StudentsData,
+                                              $seq,'no');
+        }
+        if ($chosen_output->{'every_problem'}) {
+            if ($chosen_output->{'correct'}) {
+                $score = 0;
+                # Deal with number of parts correct data
+                $Str .= '"'.join('","',( map { if ($_>0) { 
+                                                   $score += 1;
+                                                   1; 
+                                               } else { 
+                                                   0; 
+                                               }
+                                             } @$rawdata)).'",';
+            } else {
+                $Str .= '"'.join('","',(@$rawdata)).'",';
+            }
+        }
+        if ($chosen_output->{'sequence_sum'}) {
+            $Str .= '"'.$score.'",';
+        } 
+        if ($chosen_output->{'sequence_max'}) {
+            $Str .= '"'.$seq_max.'",';
+        }
+        $total+=$score;
+    }
+    if ($chosen_output->{'grand_total'}) {
+        $Str .= '"'.$total.'",';
+    }
+    chop($Str);
+    $Str .= "\n";
+    print $outputfile $Str;
+    #
+    # Update the progress window
+    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
+    return;
 }
 
 sub csv_finish {
     my ($r) = @_;
+    return if ($request_aborted);
+    return if (! defined($outputfile));
+    close($outputfile);
+    #
+    my $c = $r->connection();
+    return if ($c->aborted());
+    #
+    # Close the progress window
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+    #
+    # Tell the user where to get their csv file
+    $r->print('<br />'.
+              '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
+    $r->rflush();
+    return;
+    
 }
 
 }
@@ -896,7 +1599,7 @@ sub csv_finish {
 
 =pod
 
-=item &StudentPerformanceOnSequence()
+=item &StudentTriesOnSequence()
 
 Inputs:
 
@@ -916,131 +1619,201 @@ Inputs:
 
 #######################################################
 #######################################################
-sub StudentPerformanceOnSequence {
+sub StudentTriesOnSequence {
     my ($student,$studentdata,$seq,$links) = @_;
     $links = 'no' if (! defined($links));
     my $Str = '';
     my ($sum,$max) = (0,0);
+    my $performance_length = 0;
+    my @TriesData = ();
+    my $tries;
     foreach my $resource (@{$seq->{'contents'}}) {
         next if ($resource->{'type'} ne 'assessment');
         my $resource_data = $studentdata->{$resource->{'symb'}};
         my $value = '';
         foreach my $partnum (@{$resource->{'parts'}}) {
+            $tries = undef;
             $max++;
+            $performance_length++;
             my $symbol = ' '; # default to space
             #
+            my $awarded = 0;
+            if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
+                $awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
+                $awarded = 0 if (! $awarded);
+            }
+            #
+            my $status = '';
             if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
-                my $status = $resource_data->{'resource.'.$partnum.'.solved'};
-                if ($status eq 'correct_by_override') {
-                    $symbol = '+';
-                    $sum++;
-                } elsif ($status eq 'incorrect_by_override') {
-                    $symbol = '-';
-                } elsif ($status eq 'ungraded_attempted') {
-                    $symbol = '#';
-                } elsif ($status eq 'incorrect_attempted')  {
-                    $symbol = '.';
-                } elsif ($status eq 'excused') {
+                $status = $resource_data->{'resource.'.$partnum.'.solved'};
+            }
+            #
+            my $tries = 0;
+            if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
+                $tries = $resource_data->{'resource.'.$partnum.'.tries'};
+            }
+            #
+            if ($awarded > 0) {
+                # The student has gotten the problem correct to some degree
+                if ($status eq 'excused') {
                     $symbol = 'x';
                     $max--;
-                } elsif ($status eq 'correct_by_student' &&
-                    exists($resource_data->{'resource.'.$partnum.'.tries'})){
-                    my $num = $resource_data->{'resource.'.$partnum.'.tries'};
-                    if ($num > 9) {
+                } elsif ($status eq 'correct_by_override') {
+                    $symbol = '+';
+                    $sum++;
+                } elsif ($tries > 0) {
+                    if ($tries > 9) {
                         $symbol = '*';
-                    } elsif ($num > 0) {
-                        $symbol = $num;
                     } else {
-                        $symbol = ' ';
+                        $symbol = $tries;
                     }
                     $sum++;
                 } else {
-                    $symbol = ' ';
+                    $symbol = '+';
+                    $sum++;
                 }
             } else {
-                # Unsolved.  Did they try?
-                if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
+                # The student has the problem incorrect or it is ungraded
+                if ($status eq 'excused') {
+                    $symbol = 'x';
+                    $max--;
+                } elsif ($status eq 'incorrect_by_override') {
+                    $symbol = '-';
+                } elsif ($status eq 'ungraded_attempted') {
+                    $symbol = '#';
+                } elsif ($status eq 'incorrect_attempted' ||
+                         $tries > 0)  {
                     $symbol = '.';
                 } else {
-                    $symbol = ' ';
+                    # Problem is wrong and has not been attempted.
+                    $symbol=' ';
                 }
             }
             #
-            if ($links eq 'yes' && $symbol ne ' ') {
+            if (! defined($tries)) {
+                $tries = $symbol;
+            }
+            push (@TriesData,$tries);
+            #
+            if ( ($links eq 'yes' && $symbol ne ' ') ||
+                 ($links eq 'all')) {
+                if (length($symbol) > 1) {
+                    &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
+                }
                 $symbol = '<a href="/adm/grades'.
                     '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
                         '&student='.$student->{'username'}.
-                            '&domain='.$student->{'domain'}.
+                            '&userdom='.$student->{'domain'}.
                                 '&command=submission">'.$symbol.'</a>';
             }
             $value .= $symbol;
         }
         $Str .= $value;
     }
-    return ($Str,$sum,$max);
+    if ($seq->{'randompick'}) {
+        $max = $seq->{'randompick'};
+    }
+    return ($Str,$performance_length,$sum,$max,\@TriesData);
 }
 
 #######################################################
 #######################################################
-sub StudentAverageTotal {
-    my ($cache, $students, $sequenceKeys)=@_;
-    my $Str = "\n<b>Summary Tables:</b>\n";
-    my %Correct = ();
-    my $ProblemsSolved = 0;
-    my $TotalProblems = 0;
-    my $StudentCount = 0;
-
-    foreach my $name (@$students) {
-        $StudentCount++;
-        foreach my $sequence (@$sequenceKeys) {
-            $Correct{$sequence} +=
-	       $cache->{$name.':'.$sequence.':problemsCorrect'};
-        }
-	$ProblemsSolved += $cache->{$name.':problemsSolved'};
-        $TotalProblems += $cache->{$name.':totalProblems'};
-    }
-    if ($StudentCount) { 
-        $ProblemsSolved = sprintf( "%.2f", 
-                             $ProblemsSolved/$StudentCount);
-        $TotalProblems /= $StudentCount;
-    } else {
-        $ProblemsSolved = 0;
-        $TotalProblems  = 0;
-    }
 
-    $Str .= '<table border=2 cellspacing="1">'."\n";
-    $Str .= '<tr><td><b>Students Count</b></td><td><b>'.
-            $StudentCount.'</b></td></tr>'."\n";
-    $Str .= '<tr><td><b>Total Problems</b></td><td><b>'.
-            $TotalProblems.'</b></td></tr>'."\n";
-    $Str .= '<tr><td><b>Average Correct</b></td><td><b>'.
-            $ProblemsSolved.'</b></td></tr>'."\n";
-    $Str .= '</table>'."\n";
+=pod
 
-    $Str .= '<table border=2 cellspacing="1">'."\n";
-    $Str .= '<tr><th>Title</th><th>Total Problems</th>'.
-            '<th>Average Correct</th></tr>'."\n";
-    foreach my $S(@$sequenceKeys) {
-        my $title=$cache->{$S.':title'};
-	#$Str .= $cache->{$S.':problems'};
-	#my @problems=split(':', $cache->{$S.':problems'});
-	#my $pCount=scalar @problems;
-	my $pCount=MaxSeqPr($cache,@$students[0],$S);
-        my $crr;
-	if ($StudentCount) {
-            $crr=sprintf( "%.2f", $Correct{$S}/$StudentCount );
-        } else {
-            $crr="0.00";
-        }
-        $Str .= '<tr><td>'.$title.
-                '</td><td align=center>'.$pCount.
-                '</td><td align=center>'.$crr.
-                '</td></tr>'."\n";
-    }
+=item &StudentPerformanceOnSequence()
 
-    $Str .= '</table>'."\n";
+Inputs:
 
-    return $Str;
+=over 4
+
+=item $student
+
+=item $studentdata Hash ref to all student data
+
+=item $seq Hash ref, the sequence we are working on
+
+=item $links if defined we will output links to each resource.
+
+=back
+
+=cut
+
+#######################################################
+#######################################################
+sub StudentPerformanceOnSequence {
+    my ($student,$studentdata,$seq,$links) = @_;
+    $links = 'no' if (! defined($links));
+    my $Str = ''; # final result string
+    my ($score,$max) = (0,0);
+    my $performance_length = 0;
+    my $symbol;
+    my @ScoreData = ();
+    my $partscore;
+    foreach my $resource (@{$seq->{'contents'}}) {
+        next if ($resource->{'type'} ne 'assessment');
+        my $resource_data = $studentdata->{$resource->{'symb'}};
+        foreach my $part (@{$resource->{'parts'}}) {
+            $partscore = undef;
+            my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
+                                              $resource->{'symb'},
+                                              $student->{'domain'},
+                                              $student->{'username'},
+                                              $student->{'section'});
+            if (!defined($weight) || ($weight eq '')) { 
+                $weight=1;
+            }
+            #
+            $max += $weight; # see the 'excused' branch below...
+            $performance_length++; # one character per part
+            $symbol = ' '; # default to space
+            #
+            my $awarded = 0;
+            if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
+                $awarded = $resource_data->{'resource.'.$part.'.awarded'};
+                $awarded = 0 if (! $awarded);
+            }
+            #
+            $partscore = $weight*$awarded;
+            $score += $partscore;
+            $symbol = $partscore; 
+            if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
+                $symbol = sprintf("%.0f",$symbol);
+            }
+            if (length($symbol) > 1) {
+                $symbol = '*';
+            }
+            if (exists($resource_data->{'resource.'.$part.'.solved'})) {
+                my $status = $resource_data->{'resource.'.$part.'.solved'};
+                if ($status eq 'excused') {
+                    $symbol = 'x';
+                    $max -= $weight; # Do not count 'excused' problems.
+                }
+            } else {
+                # Unsolved.  Did they try?
+                if (exists($resource_data->{'resource.'.$part.'.tries'})){
+                    $symbol = '.';
+                } else {
+                    $symbol = ' ';
+                }
+            }
+            #
+            if (! defined($partscore)) {
+                $partscore = $symbol;
+            }
+            push (@ScoreData,$partscore);
+            #
+            if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
+                $symbol = '<a href="/adm/grades'.
+                    '?symb='.&Apache::lonnet::escape($resource->{'symb'}).
+                    '&student='.$student->{'username'}.
+                    '&userdom='.$student->{'domain'}.
+                    '&command=submission">'.$symbol.'</a>';
+            }
+            $Str .= $symbol;
+        }
+    }
+    return ($Str,$performance_length,$score,$max,\@ScoreData);
 }
 
 #######################################################