As I was looking for some inspiration on which headers to put in my spreadsheet, I came across Completionator. It seems to tick all the right boxes:
- The interface isn’t a total disaster
- GOG/Steam import, although GOG import isn’t working out for me atm.
- Sane Excel export, but I’m not sure why filters aren’t enabled on the headers by default. AutoFilter is just one click away of course.
http://www.completionator.com/
It looks like even if you don’t want want to use this website, at the very least it’s still a good way to kickstart a decent spreadsheet with your GOG and Steam collection.
A screenshot of the Excel export filtered on my Tomb Raider games: