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Company details

  1. Database Management Company
  2. Computer Service
  3. Media Company

Written by the company

FILExt is a long-established, independent resource that helps everyday users and IT professionals understand, identify, and open unknown file types. Founded in California in 2000 by software pioneer Tom Simondi, FILExt has supported more than 50 million users over the past two decades in finding safe, reliable ways to work with files on both computers and smartphones. Today, FILExt continues to maintain what is widely regarded as one of the world’s largest and most respected databases of file formats and file extensions. Behind FILExt is a team with deep roots in the software industry. Tom Simondi was recognized as one of the best-known software programmers of the late 1980s and is a founding member and Hall of Fame inductee of the Association of Software Professionals. FILExt’s technical operations are supported by long-term partner pairNetworks in Pittsburgh, and the service benefits from contributions by experts and power users from around the world. FILExt has been referenced and recommended by leading publications and organizations, including the New York Times, the Wall Street Journal, PC World, Oracle, and Microsoft. Microsoft even integrated Tom’s file extension research into Windows OS, underscoring the reliability of the information provided. Over the years, FILExt has consistently been used by media professionals, businesses, educational institutions, and home users in the United States and globally. FILExt remains free to use and is continuously reviewed and updated. If you encounter an unfamiliar file, FILExt provides clear, unbiased information and trusted guidance, helping you decide how to open it safely and which software tools are appropriate—giving users confidence that they are relying on a reputable, time-tested service.


Contact info

3.2

Average

TrustScore 3 out of 5

1 review

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Replied to 100% of negative reviews

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Rated 1 out of 5 stars

says i have a ad blocker but dont so i…

says i have a ad blocker but dont so i cant use the website would do 0 stars

24 January 2026
Unprompted review
Filext logo

Reply from Filext

Please contact us here: https://filext.com/contact.html
- we will try to resolve your issue as quickly as possible.
Filext.com provides its services to users free of charge. You can find out everything about file formats. Only the preview tool and conversion to another format are not available when an ad blocker is active.

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