I just upgraded to Accordance 10, and my old computer is still running Accordance 9. I copied my Accordance folders into dropbox to move them, but for some reason the user notes files have no extension. When I check Accordance's sample notes file, it doesn't seem to have an extension. However, without any extension on the files I haven't been able to open/import them as user notes because they aren't being recognized as a valid Accordance format. What must I do?