更新

app-ghs/controllers/UploadController.php

@@ -182,7 +182,7 @@ class UploadController extends BaseController
         }
         $preFileName = stringUtil::uniqueFileName();
         //$newFile = $preFileName . ".txt";
-        $newFile = $preFileName . ".xls";
+        $newFile = $preFileName . ".txt";
         $fullPathFile = $path . $newFile;
         if (move_uploaded_file($file['tmp_name'], $fullPathFile)) {