File did not save completely because Painter 2021 shut down

For some reason Painter shuts down after using it for more than a few hours. I finished my work, hit "save as" as it was saving, Painter shut down. It looked like it made it in time, but not sure. I can still find the file on my computer, but not in Painter and Painter can't open it. The file was all Text, so I thought I could open it in note pad, but it was all in code. Is there a way to open my file?