Use FILExt to research unknown file extensions

Every now and then we run across a file extension which we don’t understand. I’m sure most people, including myself, tend to simply Google file extensions we don’t know or don’t understand. Googling a file extensions typically finds the answer but a quicker, to-the-point method is using FILExt.

FILExt is an online database that contains information on thousands of file extensions. It alphabetically organizes file extensions and has a search box, so you can either find the specific file extension you are looking for from the alphabetized list or use the search box. Once a file extension is found, it provides information regarding that file extension such as the file type, who created it, programs that can open it, etc.:

Once you know what type of file you are dealing with, you can either click on the links FILExt provides under “Related links” and “Other applications associated with file type XXX” to grab a program to open the file type in question or Google for a program.

Using FILExt to find information about file extensions is very easy and it contains information regarding very many file types. However, be warned: The website is run and operated by Uniblue, a software developer. Uniblue has flooded FILExt with ads for its products, such as the “check your registry” link you see in the above screenshot. So be careful when threading FILExt; treat it like a frenemy.

You can access FILExt from the link below:

[Image credit: Dave Dugdale]

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  • vcd

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  • Hmm it appears like your site ate my first comment (it was super long) so
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  • Ashraf

    @Sir Hollingsworth II: No that is not me. I ain’t that old, yet. :-P I’m sure the man in the picture appreciate the compliment though!

    @Hamza: Yeah, they have way too many ads.

  • Hamza

    The most disturbing thing in their site is the Ads that cover all pages, and -of course- the FREE SCAN!, but it stills good site.

  • Sir Hollingsworth II

    Is that you in the photo Ashraf? You’re quite distinguished looking my good man!

    Carry on!