function createExportExcel()
 {
     global $rbacsystem;
     if ($rbacsystem->checkAccess("write", $_GET['ref_id'])) {
         include_once "./Modules/TestQuestionPool/classes/class.ilQuestionpoolExport.php";
         $question_ids =& $this->object->getAllQuestionIds();
         $qpl_exp = new ilQuestionpoolExport($this->object, 'xls', $question_ids);
         $qpl_exp->buildExportFile();
         $this->ctrl->redirectByClass("ilquestionpoolexportgui", "");
     }
 }