I am trying to export to excel, using the demo that is posted on the website.
I can export in the other 3 formats (csv, html and Json), but when I try Excel, the file is created, and when Excel tries to open it, I get this message:
Excel cannot open the file 'FileName.xlsx'. because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.
Thank you for your help.
OA.
