I have a radgrid, whose data i am exporting to excel (xls) format using radGrid.MasterTableView.ExportToExcel(), export is working as expected, but when I open the exported xls file and click "Save as", the "Save as type:" is set to "Web Page(.htm.html)", it is expected to be "Excel Workbook(*.xlsx)". The export code is as below,
radGrid.ExportSettings.FileName = "Export";
radGrid.ExportSettings.HideStructureColumns = true;
radGrid.ExportSettings.OpenInNewWindow = true;
radGrid.ExportSettings.ExportOnlyData = true;
radGrid.MasterTableView.GroupsDefaultExpanded = true;
radGrid.MasterTableView.Caption = string.Empty;
Please suggest.Thank you.