Kelly Greer

I recently upgraded to a Nikon D7200. I cannot view the preview of the raw files in my Mac's finder. I'm sure it's because I don't have the most recent OS. I'm on 10.9.5 Is there any work around to see the files in finder without upgrading? (And is it also correct that Bridge CS5 cannot "preview" them either? I've been using CS6, but it started acting up, so I went back to CS5 and....) Thanks so much!