I can, however, switch users and AOO works fine under another user. I did First Aid. The Mac wanted to install an update, so I allowed it. I also deleted OpenOffice and reinstalled. I shut down, powered off, rebooted. I have not resorted to animal sacrifice.
All the search results I have found are very old, so I'm hoping that some newer information is available. Besides wiping out and creating a whole new user account, has anyone actually identified the cause and solved this problem? I imagine it's a permissions issue and some file somewhere has an errant setting that is preventing disk access to OpenOffice. Would be nice to fix the actual problem without wiping and rebuilding my entire user workspace.
I'm using OpenOffice 4.1.7 on a Mac running the very latest Catalina, 10.15.4.
Thanks for any help you can offer,
Dave.
Q02/A02 solved it.
viewtopic.php?f=74&t=89283
Update: I had already deleted the user folder and relaunched AOO, but it still wouldn't save any files. When I submitted the post and got the same answer, it worked this time!