- File extension "p2p"
- File extension "p06"
- File extension "owner"
- File extension "otrkey"
- File extension "order"
- File extension "or3"
- File extension "option"
- File extension "omod"
- File extension "old2"
- File extension "ofa"
- File extension "oemigaccount"
- File extension "ode"
- File extension "od4"
- File extension "obp"
- File extension "o2c"
- File extension "ntg"
- File extension "nsz"
- File extension "nsu"
- File extension "nre"
- File extension "nqf"
- File extension "npe"
- File extension "noa"
- File extension "nmx"
- File extension "nml"
- File extension "nlpack"
- File extension "nit"
- File extension "nim"
- File extension "ngc"
- File extension "ng"
- File extension "nfp"