That is strange. Like joemikeb said, CSV is a generic standard that any spreadsheet software can import. It might be worth a try to export into a CSV format and see what you get when you import into Excel. It should be a very quick process, export/import.

On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.