Hi Ravit,
Thank you for your interest in Syncfusion products.
1 DataView to Excel It is not possible to export the DataView data into the Excel file. We can only export the DataTable into the Excel file using our XlsIO. As a workaround please convert the DataView to DataTable then export into Excel file.
Here is the sample for your reference:
http://www.syncfusion.com/development/uploads/DataGridViewtoExcel_30cfcae4.zip In this sample we have converted DataView into DataTable then exported to Excel file.
2. i want to do this without saving it first, but to open the excel and let the user save it if he wants, in which path he wants It is not possible to open the Excel file without saving into the disk. After saved the file in the disk only we can view it in the viewer or MS Excel.
Please let me know if you have any other questions.
Best Regards,
Bhuvana