diff --git a/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/controller/admin/dataset/DatasetController.java b/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/controller/admin/dataset/DatasetController.java
index 3c8e685ea..155c85357 100644
--- a/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/controller/admin/dataset/DatasetController.java
+++ b/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/controller/admin/dataset/DatasetController.java
@@ -149,7 +149,7 @@ public class DatasetController {
             case 1:
                 return new FileInfoVO("dataset_example_txt.txt", "text/plain");
             case 2:
-                return new FileInfoVO("dataset_example_xlsx.xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+                return new FileInfoVO("dataset_example_xlsx.xlsx", "application/vnd.ms-excel");
             case 3:
                 return new FileInfoVO("dataset_example_csv.csv", "text/csv");
             case 4: