What you should never do is edit the RTF files within the scrivx folder with another editor. It can screw up the whole project big time. The sync system for the Mac exports the contents as text files that can be edited and then when the re-sync to Scrivener is done, the changed paragraphs are merged by Scrivener. If you edit the RTF directly you’ll end up with internal scrivener files like binder-strings and others no longer matching the text it finds in the RTFs, and you’ll get a loud raspberry!