I don’t know what happened, but a few months ago I discovered that my source documentation associated with each bit of data was mixed up. When discovered, all I could do was cry.
I thought I’d give it one more try today and found a backup copy under a different name that the program itself had saved. Bad news: it’s from 2007 so I’m losing a lot of additions made in the last 2 years. Good news: I can deal with that! It’s better than losing everything!!!