I can see an XLSX option in the Universal Themes application here: https://apex.oracle.com/pls/apex/apex_pm/r/ut/interactive-report

And while I can see an option to enable xlsx export in the Interactive Report attributes, it does not present itself in the Download options itself when I run the page.
There is not even an option on the Interactive Grid.
I can't use cloud based solutions, as I cannot send data to the cloud from our organisation.
I have Swedish users, who because of Regional settings on Windows, cannot automatically open a CSV file in Excel at all, and this is a real blocker for us, I am sure this is not the only country with such issues.
Surely there is an option to export to XLS, if not now - then planned for a future release, without the need for BI Publisher??
Any advice appreciated.
Stephen