Quite often you get files (from others or online) that you can't open because you don't have the associated software installed on your computer. To find out and identify unknown file format and which program can open it, check out FileSuffix. It is a reference directory that provides information for hundreds of known filename extensions.

identify unknown file format

Users may search for an extension using the search engine on top or browse file formats alphabetically. The site gives you info on the extension type (video, image, document, archive etc.) and description, list of programs that can open it and links to websites where you can convert the extension to another format.

identify unknown file type

Note: Every file on your computer has an extension at the end which indicates the type of information stored in that file. For instance, .doc file (thesis.doc) is a Microsoft Word document, .mp3 file is an audio file, etc.

Features:

  • Easily identify unknown file types.
  • Search for unknown extensions using search engine or browse by extension.
  • Find out what the extension stands for and which programs can open it.
  • Get links to the official extension webpage and places where you can convert it to another format.
  • Similar websites: FILExt and OpenWith.

Check out FileSuffix @ www.filesuffix.com