Mod file corrupt, but works then starting content creator without a mod

I have worked on a map for a long time since I corrupted my mod by shutting off my computer while saving.
Since I found out that I can start content creator and continue without a mod it somehow finds my mod/save and I can work on it and save it. The problem now is that I want to clean up my mod file and make it work properly. So can I use my “save as” files and recreate the mod? or is there a way to fix this?

Thanks for any replies.