Browse file extensions by file type:
Internet related file type extensions (58 extensions)
File extensions used on internet webpages, internet content and web development
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Internet related filename extensions
File extensions used on internet webpages, internet content and web development
Extension | File type description |
 file extension !ut | uTorrent incomplete download file |
| file extension adr | Opera bookmarks file |
| file extension asp | ASP script, page |
| file extension aspx | ASP.NET script, page |
| file extension bc | Bittorrent unfinished download file |
| file extension bc! | Bittorrent unfinished download file |
| file extension css | Cascading Style Sheets file |
| file extension css1 | Cascading Style Sheet |
 file extension ctt | Windows Live Messenger Contact List |
| file extension dita | DITA output file |
| file extension dtd | Document Type Definition |
| Outlook Express Email Message | |
| file extension eml | Outlook Express Email Message |
| file extension feed-ms | Microsoft rss feed store file |
| file extension feedsdb-ms | Microsoft rss feeds store file |
 file extension fla | Editable Adobe Flash Movie |
| Flash video file | |
| Graphics interchange file format | |
| file extension htc | HTML component file |
| HyperText Markup Language file - web page | |
 file extension html | Web page file - Hypertext Markup Language |
| file extension htmls | HyperText Markup Language document with server-side include |
 file extension jpg | JPEG bitmap image file format |
| file extension js | JavaScript file |
| file extension jsf | Java server file |
| file extension mime | Message in MIME format (RFC822) |
| file extension msg | Microsoft Exchange mail document |
| file extension msie | HTML for Internet Explorer (see A Web Site on a CD for more explanations) |
| file extension opml | OPML file format |
| file extension part | Partial download file |
| file extension pfc | AOL - Personal filling cabinet |
| file extension pgp | Pretty Good Privacy Encrypted file |
 file extension php | PHP script, page |
 file extension php5 | PHP script version 5 (HyperText PreProcessor) |
| file extension phps | PHP script source code file |
| file extension phtml | HTML page that includes a PHP script |
| Portable (Public) Network Graphic | |
| file extension pubkr | Public key ring |
| file extension rss | Really Simple Syndication - RSS file format |
| file extension sgml | IETF SGML document (Standard Generalized Markup Language) |
| file extension smil | Synchronized Multimedia Integration Language |
| file extension svg | XML based vector graphics format |
 file extension swf | ShockWave Flash, Animated vector format for the Internet |
| file extension swf2 | Flash file |
| file extension swfl | Shockwave flash |
| BitTorrent information file | |
| file extension tpl | PHP template file |
| file extension url | Internet Shortcut - URL - Uniform Resource Locator |
| file extension vrml | Virtual Reality Modeling Language |
| file extension wdgt | Opera browser widget |
| file extension webloc | Internet URL |
| Windows Media Player Download Package | |
| file extension xhtml | Libxml Html file |
| XML document | |
| file extension xps | XML paper specification format |
| file extension xsl | XML stylesheet file |
| file extension xslt | XSL Transform File |
| file extension zbd | Zebedee encrypted file |