diff --git a/src/views/system/internalWorkGroup/WorkingGroupList.vue b/src/views/system/internalWorkGroup/WorkingGroupList.vue
index 53c7f501..aeac566d 100644
--- a/src/views/system/internalWorkGroup/WorkingGroupList.vue
+++ b/src/views/system/internalWorkGroup/WorkingGroupList.vue
@@ -421,13 +421,13 @@ export default {
           return
         }
         if (typeof window.navigator.msSaveBlob !== 'undefined') {
-          window.navigator.msSaveBlob(new Blob([data], { type: 'application/vnd.ms-excel' }), fileName + '.xlsx')
+          window.navigator.msSaveBlob(new Blob([data], { type: 'application/vnd.ms-excel' }), fileName + '.xls')
         } else {
           const url = window.URL.createObjectURL(new Blob([data], { type: 'application/vnd.ms-excel' }))
           const link = document.createElement('a')
           link.style.display = 'none'
           link.href = url
-          link.setAttribute('download', fileName + '.xlsx')
+          link.setAttribute('download', fileName + '.xls')
           document.body.appendChild(link)
           link.click()
           document.body.removeChild(link) // 下载完成移除元素