I haven't find a way to export to Excel format from a WebCore grid or FNC grid on Visual Studio Core.
Is there any ?
There is the TWebXLSX component you could use for this. You can download this component from:
https://www.tmssoftware.com/site/webpartners.asp
With TWebXLSX you can do client-side XLSX file creation and have it for download.
That is just great. Thanks!