| .qtz |
Quartz Composer File |
| .qtl |
QuickTime Link File |
| .qtp |
QuickTime Preferences File |
| .qt |
Apple QuickTime Movie |
| .qtch |
QuickTime Cache File |
| .qlgenerator |
Quick Look Generator File |
| .qtm |
Apple QuickTime Movie File |
| .qfilter |
ColorSync Utility Quartz Filter |
| .qtpxcomposition |
QuickTime Composition File |
| .qdat |
QuickTime Install Cache File |
| .r |
R Script File |
| .rcproject |
iMovie '08 Project |
| .rsrc |
Macintosh Operating System Resource File |
| .rtfd |
Rich Text Format Directory File |
| .rts |
Royal TS Remote Connection File |
| .swift |
Swift Source Code File |
| .snd |
Sound File |
| .sdef |
AppleScript Dictionary Document |
| .strings |
Text Strings File |
| .scpt |
AppleScript Script File |
| .saver |
Mac OS X Screen Saver |
| .savedsearch |
Spotlight Saved Search |
| .sparseimage |
Mac OS X Sparse Image |
| .sparsebundle |
Mac OS X Sparse Bundle |