find previous backup

I accidentally replaced a file with a previous version, dragging a file to a flash drive. I accidentally dragged the old one back, now I don’t have the file I had just saved to my desktop. I’m working in HighSierra on a mac and cannot find where, if anywhere, the last previous version saved might be stored. I’ll lose four hours work to a manuscript, and probably couldn’t reproduce the changes at all. Help!!

If you have activated the backup option at opening a file, the path it’s in the preferences/LibreOffice/Paths - Backups.

Here is my path, off Windows 10