Thank you for writing.
You can use the GridViewSpreadExport
class which utilizes the SpreadProcessing
libraries exporting natively to Excel. The spread export object exposes and FileExportMode
property and you can set it so that you export multiple grids in a single file each being on a separate sheet:
GridViewSpreadExport spreadExporter =
spreadExporter.FileExportMode = FileExportMode.NewSheetInExistingFile;
Please check the following documentation article providing detailed information: https://docs.telerik.com/devtools/winforms/gridview/exporting-data/spread-export
I hope this helps. Should you have further questions please do not hesitate to write back.