rchusid said: If someone would happen to have an answer quickly it would be appreciated but the urgency has decreased. It turns out that I did take a break an hour or two before I finished. While I foolishly held off until I finished for the day to do a backup, I found that One Drive did backup the file from an hour or two before I finished. It would be great if I can restore the damaged file but repeating 1-2 hour's work isn't as disastrous as it could have been.
Quicken Jared said: ... this issue with mysterious data file passwords. Thank you for drawing our attention to this problem here on the Quicken Community.