diff --git a/www/common/onlyoffice/inner.js b/www/common/onlyoffice/inner.js
index 1c2c6eea5..02dfcc411 100644
--- a/www/common/onlyoffice/inner.js
+++ b/www/common/onlyoffice/inner.js
@@ -2155,6 +2155,7 @@ define([
                     permissions: {
                         download: dc?.permissions?.download || false,
                         print: dc?.permissions?.print || true,
+                        protect: file.type === 'xlsx',
                     }
                 },
                 "documentType": file.doc,