Other
- AXD – cookie extensions found in temporary internet folder
- AXX – encrypted file, created with Axcrypt
- BAK – backup file
- BDF – Binary Data Format – raw data from recovered blocks of unallocated space on a hard drive
- CBP – CD Box Labeler Pro, CentraBuilder, Code::Blocks Project File, Conlab Project
- CREDX – CredX Dat File
- DUPX – DuupeCheck database management tool project file
- GA3 – Graphical Analysis 3
- GED – GEDCOM, (GEnealogical Data COMmunication) file format for exchanging genealogical data between different genealogy software
- GXK – Galaxkey, an encryption platform for authorized, private and confidential email communication
- HLP – Windows help file
- IGC – flight tracks downloaded from GPS devices in the FAI's prescribed format
- INI file – used by many applications to store configuration
- INF – similar file format to INI; used to install device drivers under Windows, inter alia.
- KMC – tests made with KatzReview's MegaCrammer
- LNK – Binary format file, stores shortcuts under MS Windows 95 and later
- LSM – LSMaker script file (program using layered .jpg to create special effects; specifically designed to render lightsabers from the Star Wars universe) (.lsm)
- OER - AU OER TOOL, Open Educational Resource editor
- PIF – Used for running MS-DOS programs under Windows
- POR – So called "portable" SPSS files, readable by PSPP
- .ppk PuTTY private key, which can be converted to a OpenSSH ".ssh" file, similar to a ".sec" secret private key file.
- .pub - public key file generated from some private key file by ssh-keygen or puttygen, suitable for publishing.
- PXZ – Compressed file to exchange media elements with PSALMO
- RISE – File containing RISE generated information model evolution
- .ssh an OpenSSH-format private key file, possibly generated by from a ".ppk" file using puttygen, or generated directly by ssh-keygen. Also: a directory with the 4-character name, literally ".ssh", is used by ssh-keygen to store both public keys (with the ".pub" extension) and private keys (without any extension).
- TC - Virtual encrypted disk container,created by TrueCrypt
- TOPC – TopicCrunch SEO Project file holding keywords, domain and search engine settings (ASCII);
- TOS – Character file from The Only Sheet
- TMP – Temporary file
- URL – INI format file, used by Internet Explorer to save Favorites
- XLF – Extensible LADAR Format
- ZED – My Heritage Family Tree
- XMC – Assisted contact lists file format, based on xml and used in kindergartens and schools
Read more about this topic: List Of File Formats