Better yet,
I already added Nebulous v3.1 (x86).exe, you may try it out! I hope this solves the problem.
Oh, I didn't think that not having Excel installed could be the cause, sorry ^^U
I use LibreOffice, is there any way to use it instead? I tried the new build though, but I got the same error.
Thank you! :)
I looked into it and apprently there's a way to import-export xaml bsed info to Libre Office & Open Office and I might indeed try to add the feature later, but don't hold your breath :)
That would be great :D