OO-4581: add xlsx to report name

src/main/java/org/olat/modules/grading/ui/GradersListController.java

@@ -274,7 +274,6 @@ public class GradersListController extends FormBasicController {
 			}
 		} else if(addAbsenceLeaveCtrl == source) {
 			if(event == Event.CHANGED_EVENT || event == Event.DONE_EVENT) {
-				doReassignAfterAbsenceLeave();
 				loadModel(true);
 			}
 			cmc.deactivate();
@@ -442,10 +441,6 @@ public class GradersListController extends FormBasicController {
 		cmc.activate();	
 	}
 	
-	private void doReassignAfterAbsenceLeave() {
-		//TODO correction
-	}
-	
 	private void doShowAssignments(UserRequest ureq, GraderRow row, SearchStatus searchStatus) {
 		OpenAssignmentsEvent event = new OpenAssignmentsEvent(row.getGrader(), searchStatus);
 		fireEvent(ureq, event);

src/main/java/org/olat/modules/grading/ui/ReportCalloutController.java

@@ -161,6 +161,7 @@ public class ReportCalloutController extends FormBasicController {
 		if(end != null) {
 			sb.append("_").append(Formatter.formatDateFilesystemSave(end));
 		}
+		sb.append(".xlsx");
 		return sb.toString();
 	}
 }