diff --git a/src/resources/plugins/TsSheet/form/component/formtableinputer/table-import-export-mixin.js b/src/resources/plugins/TsSheet/form/component/formtableinputer/table-import-export-mixin.js
index e4d8d2d9cc4791c9efa3e9806ca14bfd753c8d2b..c36ffe877013dca2c9cdff322769093fe8715202 100644
--- a/src/resources/plugins/TsSheet/form/component/formtableinputer/table-import-export-mixin.js
+++ b/src/resources/plugins/TsSheet/form/component/formtableinputer/table-import-export-mixin.js
@@ -103,7 +103,11 @@ export default {
         });
       });
     },
-    async handleBeforeUpload({ file, extraList = [], tbodyList = [] }) {
+    handleBeforeUpload({ file, extraList = [], tbodyList = [] }) {
+      this._handleExcelImportData({ file, extraList, tbodyList });
+      return false; // 阻止自动上传，完全前端处理。
+    },
+    async _handleExcelImportData({ file, extraList = [], tbodyList = [] }) {
       // 导入表格
       const workbook = new ExcelJS.Workbook();
       await workbook.xlsx.load(file);