I went to open a particular file and got a warning saying it was either open on another computer or hadn’t closed properly. It said to continue if it wasn’t open on another computer, which it wasn’t, so I clicked that.
And now the program doesn’t open at all and when I search for the file in programs and try to open it there, I get the below message. Also all my other files open fine.
EDIT: I also tried opening an earlier version of the file I had saved as a backup via email, and that wouldn’t open either. And it didn’t help when I actually tried opening it on a different computer.