I finally resolved the problem I had opeing a file. In the "Name Conflict"
box, it says, "name cannot be the same as a built-in name". Then it gave me
the "old name" and a box to enter the "new name". The old name was
"Print_Titles", after trying every name under the sun, I simply omitted the
"_" (under score) and entered the new name as "printtitles". The file opened.
I have no idea where the name "Print Titles" came from and no idea what
"built-in name" means, but the file opened.