I went to the Knowledge Base and followed their advice to repair a damaged file by exporting a new file from the Extended Family Chart.
Apparently the idea is that it will cull the damaged portion of the file. After exporting I compared the new file to the original. I noticed it had 80 less people in it.
Putting the names list side by side for the two files showed me fairly quickly the missing names. They are names I haven't gone near in quite some time.
I don't really want to have to re-enter 80 people with associated information if I don't have to.
Does anyone know of any other way to fix the original file without deleting 80 people that appear fine in the original file?