Hi Simon,
Thanks for contacting Syncfusion Support.
You can export SfDataGrid to excel by using our “SfGridConverter” library. The “DataGridExcelExportingController.ExportToExcel” method will export the grid to an Excel. We have prepared a sample to export the grid to Excel for your reference and you can download the same from the below link.
Please our below UG link for more details about exporting a grid to an Excel.
For importing data from excel sheet, you can convert the excel sheet to DataTable using our XlsIO control and bind that DataTable to our SfDataGrid. However, DataTable support for Xamarin.Android will be available in our upcoming Volume 3 main release which is scheduled to be rolled out by the end of September.
Please refer the below link to know how to convert the excel sheet to DataTable using XlsIO.
For more information about our XlsIO control and its usages, you can refer the below link.
Regards,
Divakar.