PSD files changed into Photoshop.image.21 file type that can't be opened with photoshop app.

[Wian5CD5]

I am fairly new to photoshop and but have been working without any issues for about a month or so Recently all of my psd files' format changed into something called "photoshop.image.21" I didn't change any setting so I am unsure what caused this problem. The only thing I noticed was that I had an laert saying photoshop end of file but I was still able to work and edit in the application. Any advice would be appreciated. 

[Test Screen Name · Accepted solution]

Please try this: start Photoshop and use Open from the File menu. Do the files now open OK?

[Carlos340094085qxt]

Yes, I see the gif file. Thank you!