I had almost completed a song I've been working on using my Music Maker 2020 Plus Edition program, and after simply restarting my computer one day now I suddenly cannot open that file! I constantly get an error message saying "File C:// ... etc. Cannot be opened." My other saved music files open just fine, and I have done all the updates. I've tried restarting my computer and even uninstalling/reinstalling the Music Maker program and all updates-still unable to pull up this file. I don't want to have to start all over again!!!! Is it still possible to recover this file?

Note; This happened to me once before a few years ago, and by uninstalling/reinstalling the program it was fixed. But none of that seemed to work this time.