"Thank you! This worked for me. I just opened the tmp file straight into Illustrator and it worked!"
This solution worked for me as well, Illustrator opened the tmp files with no problem!
My case was: I had lost some versions of my Illustrator work file, probably because of synchronising problems of Google Drive, on MacOS Ventura 13.2.1. (M1), because the location is now changed of the Drive folder (it became kind of a cloud HD). I'm just writing this, in case someone had also problems like me, recently... There was no crash or problem reported while working, neither when I next time opened the file. There were "just" some parts lost of my work within the file, and all of sudden there were many tmp files in my folder, where the original file is placed as well. And there were no files at all in the DataRecovery folders of Illustrator. I suggest you using the CC cloud saving options, rather than working on Google Drive... I'm gonna change this saving method now as well.