Grades are not always numbers, so take care in XLS writing

diff --git a/course/grades.php b/course/grades.php
index 3acc4e9cc26f306542456666aa1b4cf52e4840a7..95de6f5c82a22878958f9d51eb24fb917bf0da4a 100644 (file)
--- a/course/grades.php
+++ b/course/grades.php
@@ -123,7 +123,7 @@
             $myxls->InsertText($student->lastname);
 
             foreach ($studentgrades as $grade) {
-                $myxls->InsertNumber($grade);
+                $myxls->InsertText($grade);
             }
             $myxls->InsertNumber($totals[$student->id]);
         }