TTMSFMXGridExcelIO on Android64 gives exception Integer Overflow

Hello,
on Android64 I cannot get FMXGridExcelIO to work.
It always ends up with an Intergeroverflow.

With Window, no problem.
I just use TTMSFMXGrid with randomfill().
Using Delphi 11.0 FMXGridExcelIO Version 3.6.2

Is there a way around?

procedure TFStartPage_frm.Button1Click(Sender: TObject);
var
  cFile: string;
begin
  cFile := System.IOUtils.TPath.Combine(System.IOUtils.TPath.GetSharedDocumentsPath, 'myApp');
  cFile := System.IOUtils.TPath.Combine(cFile, 'Report.xls');

  GridExcelIO.XLSExport(cFile, 'Bericht');
// util.ShareFile(cFile);
end;

Hi,

We need to investigate the possibilities for targeting 64 bit for the TMS FMX UI Pack xls adapter. There is currently no 64 bit support. The TMS FNC UI Pack already supports 64 bit. There is currently no other workaround.