Hi, I have the following code that saves a grid content into an excel file:

var book = new Infragistics.Documents.Excel.Workbook();

this.excelExporter.DownloadName = fileName;
this.excelExporter.ExportMode = ExportMode.Custom;
this.excelExporter.DataExportMode = DataExportMode.DataInGridOnly;
this.excelExporter.WorkbookFormat = Infragistics.Documents.Excel.WorkbookFormat.Excel97To2003;
this.excelExporter.Export(wdg, book);

book.Save(urlInternal);

Then i send the file to the browser using the following code:

Response.ContentType = "application/vnd.ms-excel";
Response.AppendHeader("content-disposition", "attachment; filename=" + fileName);
Response.Flush();
Response.TransmitFile(urlInternal);
Response.End();

However after file download it shows up with special characters like the following: 

Do you know if i should use some other code to allow file download without altering its content

FYI, when i use Excel to open the file that is saved on the IIS server, the file opens properly.

Thank you :)