- File extension "sd1"
- File extension "sca"
- File extension "sa8"
- File extension "s7p"
- File extension "s07"
- File extension "rules"
- File extension "rtn"
- File extension "rsb"
- File extension "rptdef"
- File extension "rpcp"
- File extension "roz"
- File extension "ro"
- File extension "rng"
- File extension "rld"
- File extension "rlc"
- File extension "rid"
- File extension "rg"
- File extension "rfs"
- File extension "repair"
- File extension "read"
- File extension "rea"
- File extension "rdy"
- File extension "rbm"
- File extension "rbi"
- File extension "r49"
- File extension "r41"
- File extension "r24"
- File extension "qr2"
- File extension "qml"
- File extension "qfn"