Files In Mac High Sierra becoming scrivener files

Very Strange occurance:
When I go to open old saved research files that should be either Word or Excel files they show in the finder window as Scrivener files and do not open in either program. I tried changing the file to .xls with no results. They do not open in Scrivener either.
I’m afraid to try even more files as they also may become corrupted.

Check: … ening-file

Slàinte mhòr.

Are the problem files located inside a .scriv folder? If so, are they accessible from within the associated project?