Provides information about digital content formats from the viewpoint of maintaining sustainable and accessible archives. - Read more

Resource for those requiring definitive information about the file formats, software products and other technical components required to support long-term access to electronic records. - Read more

Searchable database of file extensions for data formats, with information and notes on each. - Read more

A database of windows file extension codes with correlating Macintosh Type/Creator code pairs. - Read more

Detailed file formats and data formats for programmers. A large collection of programming resources with detailed information. - Read more

Database of file extension information. Supports users comments and submissions. Includes discussion forum. - Read more

Searchable file extension list including descriptions and associated applications. - Read more

Database of file extensions with information about each file type. - Read more

Names many file formats and their extensions. - Read more

Contains information on main file formats as well as an FFID registry and a signature file permitting the identification of files from their contents. Also contains tips on how to design new file formats. - Read more

Developing a program to automatically identify files from their content. Project news, FAQ, and download. [GPL] - Read more

Searchable database of file extensions, explaining what they are used for and which programs they are associated with. - Read more

Contains information about many data formats. - Read more

A searchable filename extension database. - Read more

The full specifications of various file formats. - Read more