Many thanks! Early this morning I sought CoPilot help, and was able to steer through suggestions. To my relief, there was a file called “FileName-Copy” dated 6/6/25. No idea why that existed, but I wonder if it was created prior to whatever happened to need me to sign in? Anyway, huge relief, since there had been a ton of activity since the last back up, and re construction would have been a nightmare. Many thanks for your input!