FILExt is one of the oldest and most respected collections of file formats and file extensions. Over the past 20 years, more than 50 million users have found the right information and tools to open any file on their computer or smartphone. Our knowledge gathered during this period is regularly reviewed and updated. Tom Simondi first provided this information in 2000 as a free online resource for the Internet community.

FILExt is committed to helping users to identify, access, open, view or convert unknown files. To this end we provide FILExt free to all computers and smartphone users. FILExt has been mentioned in many books over the years. It is used and recommended by experts around the world as a source of information about file extensions, including: from the New York Times, the Wall Street Journal, PC World, Lifehacker, Oracle and Microsoft.

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