diff --git a/app/controllers/admin/announcements_controller.rb b/app/controllers/admin/announcements_controller.rb
index 64e45b9..dfda037 100644
--- a/app/controllers/admin/announcements_controller.rb
+++ b/app/controllers/admin/announcements_controller.rb
@@ -193,7 +193,7 @@ class Admin::AnnouncementsController < OrbitAdminController
           if File.exist?(filename)
             @thread.update(:status=>{:status=>'finish','finish_percent'=>100,'info'=>I18n.t('announcement.read_from_cache')})
           else
-            excel_contents = render_to_string( handlers: [:axlsx], formats: [:xlsx] ,partial: 'export_excel.xlsx' )
+            excel_contents = render_to_string( handlers: [:axlsx], formats: [:xlsx] ,partial: 'export_excel' )
             File.open(filename, 'wb') do |f|
               f.write excel_contents
             end