Suggestion: I didn't see the tag "file conversion" anywhere, only "color conversion."
It seems like it could be useful and target a bit more some questions that are really related to file conversion more than the software the files was created with.
Like for these questions, for example:
I think having the tag "file conversion" would make sense considering the answers, and could be added to these questions above. The "export" tag isn't always appropriate since sometimes, there's more than one software to use in order to convert a file, and there's no export at all.