no message

module/Store/src/Service/GoodsManager.php

@@ -223,7 +223,7 @@ class GoodsManager
         header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
         header('Cache-Control: cache, must-revalidate'); // HTTP/1.1
         header('Pragma: public'); // HTTP/1.0
-        $objWriter = \PHPExcel_IOFactory::createWriter($excel, 'Excel2007');
+        $objWriter = \PHPExcel_IOFactory::createWriter($excel, 'Excel5');
         $objWriter->save('php://output');
         exit;
         return;