FileInfo: The Central File Extensions Registry | Search for a title, author or keyword | ||||||||
FileInfo: The Central File Extensions Registry As alternative or parallel choice to FileExt, FileInfo.com contains a searchable database of thousands of file extensions with detailed information about the associated file types. Each file extension information page provides the name of one or more associated file types along with a detailed description and a list of programs that can open each file. Programs are listed for Macintosh, Windows, and Linux platforms, when available. Each file extension entry also includes a popularity ranking that indicates how common the associated file type is. A file extension, also called a filename extension, is the suffix at the end of a filename, which indicates what kind of file it is. For example, you can tell that the file "computer.jpg" is a JPEG image file, based on the ".jpg" file extension. Similarly, you can tell that "readme.txt" is a text document and "document.docx" is a Microsoft Word document. While most file extensions consist of three characters, some have fewer ( e.g., .H, .DB, .PS ) while others have more ( e.g., .GADGET, .TORRENT, .TAX2010 ). When you double-click a file, your computer uses the file's extension to determine what program should open it. If you change a file's extension, it may also change the program your computer uses to open the file. Therefore, you should be careful when changing a file's extension, since your computer may be unable to open the file. For example, if you change a file with a ".txt" extension to a ".doc" extension, Microsoft Word should open it. However, if you change a ".txt" file to a ".jpg" file, the file will not open. Since there are tens of thousands of software programs available, there are also tens of thousands of filename extensions. While it is helpful to learn the most commonly used file extensions, it is not possible to remember them all. So whenever you come across an extension you don't know, visit FileInfo.com to find out what kind of file it is. The FileInfo.com Firefox Search Plugin allows you to look up file extensions using the built-in search feature in Firefox and other Mozilla browsers. The File Extension Lookup Desktop Gadget ( also known as a "sidebar gadget" ) allows you to look up file extensions directly from the Windows desktop ( Windows Vista and Windows 7 ). Simply drag a file to the gadget or type a file extension in the search box and press Enter. Information about the extension will immediately load in your default Web browser. Last but not least, the File Extension Lookup Widget allows you to look up file extensions directly from the Mac OS X Dashboard.
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