Thanks. I'll may try that, but I seem to have found a workaround. Civ IV was putting all the movie and music assets in the "Music" directory. I think there was over a gig of data in there. OneDrive was backing up the data. As the free version of OneDrive is only 5 gigs, this was filling up the storage. I did figure out how to exclude the "Music" directory from backup. However, I may have actual music in the future that I actually do want to back up. So, your solution is more elegant than mine.