[GNC] Old book not opening

[Ken Farley]

I'm using Gnucash on Mac OS, but I would think the file locations are 
used for the same functions. The directory for "books" on my machine is 
"~/Library/Application Support/Gnucash/books". Different location, same 
purpose. This directory contains a bunch of files with names like <File 
Name>.gnucash.gcm. These are not Gnucash files that you'd open with 
File->Open.

The files you want to open have names of the format "<File 
Name>.gnucash". You need to find those files, without the .gcm or any 
other suffix.