Save as xlsx file

Is it possible to save as an xlsx file from within an xls padlock compiled excel book? If so how would i do so

I have clients that may want to verify calculations or work and we can’t have all of them installing an exe file in 2024.

Thanks

Sure, your compiled application can also export normal Excel workbook files.
Here is the link to the VBA code that you have to use to do so:
https://www.xlspadlock.com/doc/topics/allow-saving-non-encrypted-workbooks.htm