GridViewSpreadExport utilizes our RadSpreadProcessing library to export the content of RadGridView to xlsx, csv, pdf and txt formats. It supports exporting of the group rows by simply setting the ExportChildRowsGrouped property of the GridViewSpreadExport object to true. The SummariesExportOption property allows to specify how to export summary items. There are four options to choose. Additional information about the export options is available in the following help article: https://docs.telerik.com/devtools/winforms/controls/gridview/exporting-data/spread-export
You can also refer to our Demo application >> GridView >> Export >> Export Methods example.
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Dess | Tech Support Engineer, Sr.
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