Duplicated sound files (wav)


got a super simple and trivial question and I hope some of you knows the answer....

I have some folders added on the left side of atom to see the files I'm working with and I realized that some of them have duplicated audios, (they are not duplicated in the original folder)... does someone know why this happens and how I can reverse it?

I don't know much about it but think Mac creates .DS_Store folders with these metadata in.. I think you could just delete them