diff --git a/IRaCIS.Core.Application/Helper/ExcelExportHelper.cs b/IRaCIS.Core.Application/Helper/ExcelExportHelper.cs
index c47458e3e..fd280abf1 100644
--- a/IRaCIS.Core.Application/Helper/ExcelExportHelper.cs
+++ b/IRaCIS.Core.Application/Helper/ExcelExportHelper.cs
@@ -321,7 +321,7 @@ public static class ExcelExportHelper
             }
 
             var memoryStream2 = new MemoryStream();
-            workbook.Write(memoryStream2);
+            workbook.Write(memoryStream2,true);
 
             memoryStream2.Seek(0, SeekOrigin.Begin);
 
diff --git a/IRaCIS.Core.Application/Service/Common/ExcelExportService.cs b/IRaCIS.Core.Application/Service/Common/ExcelExportService.cs
index abdba14f3..fe9b30582 100644
--- a/IRaCIS.Core.Application/Service/Common/ExcelExportService.cs
+++ b/IRaCIS.Core.Application/Service/Common/ExcelExportService.cs
@@ -490,7 +490,7 @@ namespace IRaCIS.Core.Application.Service.Common
             }
 
             var memoryStream2 = new MemoryStream();
-            wb.Write(memoryStream2);
+            wb.Write(memoryStream2,true);
             memoryStream2.Seek(0, SeekOrigin.Begin);
 
             return new FileStreamResult(memoryStream2, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")