To start, just type in any file extension in the search box to find their entry. Within each entry, you will get a detailed explanation about what it does, the default software that works with the extension, and the list of associated software that you can use to open it.  For some entries you can also get helpful tips on how to open or convert the file.

You can also browse the different file extensions through the wide range of categories listed in the website. You can learn more about Microsoft Office extensions, vector graphics, game files, and more. Reading through this can help educate you with unlocking many features of your favorite app.

File-extensions is a great resource for anyone who need to know how to handle file extensions and how they work.

Features:

• Database of file extensions.
• Learn about their current use, apps needed to open them, and what they do.
• Type in the file extension in the search box to know all about it.
• View different extensions by category.
• View list of software associated for the file extension.
• Similar tools: FileInfo, FileSuffix, FILExt and OpenWith.

Check out File-extensions.org @ www.file-extensions.org

FileInfo is a very useful website that provides information on nearly all file formats. You can look up a file format simply by executing a keyword search. Alternatively you can browse file formats according to their category. Ranging from text files to video and vector image formats, you can browse all types of digital file types.

For each file format you will get a list of programs that open the file format under Windows, Mac, and Linux computers.

Features:

• A user-friendly website.
• Informs you on various file formats.
• Sorts file formats according to category.
• Provides a list of programs with which file formats can be opened.
• Similar tools: FileSuffix, FILExt and OpenWith.

Check out FileInfo @ www.fileinfo.com (By Umar from TechCityInc)

Wotsit is a user friendly and free to use website that provides information on file extensions. You can look up a file extension either by searching for it or by browsing categorically. Nearly all known file extensions are covered on the site ranging from graphic and game files to music and hardware formats.

When you have tracked down the required file extension, you can click on the corresponding download link and obtain a simple text (TXT) file detailing the format’s specifications.

The amount of data about file extensions on the site makes the site a must-bookmark tool for computer programmers.

Features:

• Comprehensive list of computer file formats.
• Lets you find out about computer file extensions.
• Extensions can be found via searching or categorically browsing.
• Specifications of extensions can be obtained.
• Similar tools: FileSuffix, FILExt and OpenWith.

Check out Wotsit @ www.wotsit.org (By Umar from TechCityInc)

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.

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

Programs are grouped according to file types like images, audio files, spreadsheets, videos and so on. Just search for the right program using the file extension name. Next, download the program on to your computer and open the file.

Features:

• Helps to open almost any file extension for free.
• Lists lots of freeware programs to open any file files.
• Search for particular program or browse alphabetically.
• Download the program or get it from software developers’ website.
• Free, no registration.
• You may also check out OpenItOnline, a browser tool that can open certian documents, images and other file types without the need to download and install a software for it.

Check out OpenWith @ www.openwith.org