diff --git a/app/config/wallabag.yml b/app/config/wallabag.yml
index 2c5e53a00..44cadc57d 100644
--- a/app/config/wallabag.yml
+++ b/app/config/wallabag.yml
@@ -167,5 +167,11 @@ wallabag_core:
             rule: _all ~ "https?://www\.lemonde\.fr/tiny.*"
 
 wallabag_import:
-    allow_mimetypes: ['application/octet-stream', 'application/json', 'text/plain', 'text/csv', 'text/html']
+    allow_mimetypes:
+        - 'application/octet-stream'
+        - 'application/json'
+        - 'text/plain'
+        - 'text/csv'
+        - 'text/html'
+        - 'application/vnd.ms-excel'
     resource_dir: "%kernel.project_dir%/web/uploads/import"