Lost file! Locked! Closed it and it disappeared

As I was working one file, it suddenly locked. It had to do with Square something. It locked, so I had to go to control,alt, del to the taskmaster to close it. Now I cannot find it.

Found it.It appeared when I hit the All app button and there it was.

If you close the program un naturally – it wlll not save recent files or such (because it didn’t have the chance)

I was not able to close it naturally. It was stuck in the Square something mode.

I’m assuming here, …
Because you stated “All Apps” button, are you on Windows? If so, which version and build? (To find out, go to the ‘search’ area on the task bar along the bottom of screen, or, in previous versions look for a system search area and type in either ‘ver’ or ‘system information’. It will open a new window with your operating system informtion.)
(If you are on Apple, sorry, can’t be of help…)