Here’s the problem. A “known file form” is something similar to a “.exe” or “.doc” file kind that the process is configured to learn what to try and do with. As an alternative to displaying “resume.doc”, for instance, File Explorer just shows “resume”, and relies about the “Sort” column on https://knoxqstqi.blogstival.com/61285480/how-much-you-need-to-expect-you-ll-pay-for-a-good-view-company-profile