diff --git a/FrontendWebApi/ApiControllers/HydroMeterController.cs b/FrontendWebApi/ApiControllers/HydroMeterController.cs
index f6302d6..e67160b 100644
--- a/FrontendWebApi/ApiControllers/HydroMeterController.cs
+++ b/FrontendWebApi/ApiControllers/HydroMeterController.cs
@@ -562,7 +562,7 @@ namespace FrontendWebApi.ApiControllers
             ms.Flush();
             ms.Seek(0, SeekOrigin.Begin);
             Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");
-            return File(ms, "application/vnd.ms", "電表報表.xlsx");
+            return File(ms, "application/vnd.ms", @$"電表報表{System.DateTime.Now.ToString("yyyyMMddHHmm")}.xlsx");
         }
 
         [HttpPost]
@@ -796,7 +796,7 @@ namespace FrontendWebApi.ApiControllers
             ms.Flush();
             ms.Seek(0, SeekOrigin.Begin);
             Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");
-            return File(ms, "application/vnd.ms-excel", "電表報表.xlsx");
+            return File(ms, "application/vnd.ms-excel", @$"電表報表{System.DateTime.Now.ToString("yyyyMMddHHmm")}.xlsx");
         }
 
         public static int GetDayInMonth(string yearMonth)