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List of common internet related file extensions

Some of the most common file types users may encounter when working with internet.

Common internet related files may change in time as the popularity and significance of some formats can change.
Whole category of internet related files contains now 407 file types. Show all internet related file types.

ashx file icon ashx 

An ashx file extension is associated with ASP.NET and used for one of the web page formats. Typically processed by Internet servers. You can view the content of ashx files in any text editor.

asp file icon asp 

An asp file extension is associated with the ASP Classic server side scripting engine used to dynamically generate web pages. An asp file contains Microsoft Active Server Page source code scripts. The ASP Classic is obsolete and it was replaced by ASP.NET.

aspx file icon aspx 

An aspx file extension is associated with Active Server Page Extended format used by Internet Information Services (IIS) web server with server side scripting language ASP.NET used to dynamically generate websites. Generated output from an .aspx page in your browser is common html page.

atom file icon atom Atom web feed file
bc file icon bc 

A bc file extension is used by some BitTorrent clients, such as BitComet, for unfinished downloads in progress. Cannot be directly opened.

bc! file icon bc! 

Files with BC! extensions can be commonly found as partially downloaded files saved by BitTorrent clients. These are renamed until the download is finished.

class file icon class 

A class file extension is related to the Java programming language and used for compiled Java source codes known as Class bytecode files.

crdownload file icon crdownload 

Files with crdownload suffix are partially downloaded files that are either still being downloaded by Chrome / Chromium web browsers or were not completed at all. Once the download is finished, the extension of these files is restored back to the original.

 css 

A css file extension is commonly used for text files that contain Cascading Style Sheets data, which are used on websites and define graphic layout and look of webpages.

dlc file icon dlc 

A dlc file extension is used for encrypted container that contains download links, which can be opened in JDwonloader. Same way, users can save their download list as dlc file and share it to someone else.

download file icon download 

Files with download extension were used in some of the previous versions of Chrome web browser to store incomplete downloads.

download file icon download 

Files with download extension could, especially in the past, be found as incomplete downloads originally started by Firefox web browser version 1.x to 2.x.

download file icon download 

A download file extension is related to Apple Safari web browser for Mac OS X and Microsoft Windows. A download file stores incomplete download.

eml file icon eml 

An eml file extension is used by variety e-mail clients, such as Outlook Express, Windows Mail, Windows Live Mail, Thunderbird etc. An eml file contains saved email message either meant as backup or for sharing.

flv file icon flv 

An flv file extension is used for Flash video files. Flash videos is a type of multimedia format used commonly on web sites for various animations or object elements. Requires Adobe Flash Player.

 gdoc 

Files with gdoc extension are URL links to a document created in Google Drive. It is not the actual document, just link. You can download the document from Google Drive in more typical format, like DOCX or ODT.

gif file icon gif 

Files with gif extension are one of the most common bitmap image file formats available on the Internet. Maximum number of colors is 256. This format supports also simple animations and is widely used for banners or fun animations.

 gsheet 

Files with gsheet extension are URL links to a spreadsheet created in Google Drive. It is not the actual spreadsheet, just an URL link. You can download the spreadsheet  from Google Drive in more typical format, like xlsx or ods.

 gslides 

Files with gslides extension are URL links to a presentation created in Google Drive. It is not the actual presentation, just an URL link. You can download the presentation from Google Drive in more typical format, like PPTX or PDF.

htm file icon htm 

A htm file extension is used for web documents stored in HTML Hypertext Markup Language file format. HTML language provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. Its the main language for writing web pages. A htm web page can be displayed in any Web browser.

html file icon html 

Files with html extension are web pages and documents written in the most common scripting language for internet - the Hypertext Markup Language.

js file icon js 

Files with js extension can b commonly found as JavaScripts. Used to execute scripts on internet pages and such.

 json 

Files with json file suffix are typically found as special JavaScript object notation files, which are based on the ECMAScript programming language standard.

jsp file icon jsp 

A jsp file extension is associated with Java and used for a HTML page that contains references to a Java servlet. A servlet is a Java class that handles requests. It is generated from jsp files.

mht file icon mht 

An mht file extension is associated with the Mime HTML files. MHTML is web archive format used to bind resources and HTML code into a single file. Used mainly on internet and openable with every web browser.

opml file icon opml 

Files with opml extension are written in the Outline Processor Markup Language. Used in RSS environment.

 part 

A part file extension is commonly used for partially downloaded files from internet. When the download is complete, the original extension is restored. Generally, until the download is finished, no data can be recovered from .part files.

 partial 

Files with partial extension is related to Microsoft Internet Explorer from version 9 and Microsoft Edge and used for incomplete downloads initiated through the browser.

php file icon php 

Files with php suffix can be commonly found as web pages, scripts written in PHP and processed server-side by PHP engine. PHP is a programming language that offers quick way to develop websites with dynamic content.

png file icon png 

A png file extension is commonly used for Portable Network Graphic files, bitmap images mainly on web pages.

 rss 

RSS is a XML based text file format used by Really Simple Syndication or Rich Site Summary (RSS) service. RSS service is used by many websites to publish news to their users or to RSS news aggregators. Users can reed news by using services like Google Reader, Feedly or RSS feed reader software.

swf file icon swf 

An swf file extension is commonly used for Shockwave Flash movies in animated vector format, used mainly on Internet web sites. Adobe Flash Player can play .swf files.

torrent file icon torrent 

A torrent file extension is used for various files, which are used to download files through peer-to-peer network protocol called BitTorrent. These *.torrent files can be opened in any BitTorrent client, which will then proceed to start the download using the information stored in them (such as hash, tracker etc.).

webm file icon webm 

A webm file extension is used for Matroska WebM video files. WebM file format is designed specially for web based on standard HTML5. Video streaming are compressed by VP8/VP9 video codec and audio streaming are compressed by OGG Vorbis audio codec. WebM video streaming is supported by various web browsers such as Firefox, Opera, Chrome etc. Playback of WebM video files are also supported by popular VLC Media Player, MPlayer, Winamp etc.

 webp 

A webp file extension is associated with the picture image format developed by Google that is designed to improve the performance of web pages and make the web faster by reducing image file sizes.

xap file icon xap 

Files with xap extension are mainly related to Windows Phone apps and Microsoft Silverlight installation resource files. Used for Silverlight apps.

xhtml file icon xhtml 

An xhtml file extension is associated with the Extensible HTML language used to extend HTML 4. An xhtml file stores document written in the XHTML.

xml file icon xml 

An xml file extension is commonly used for files written in Extensible Markup Language. An xml file is used in various areas of computer industry and many program languages are just derivatives of XML. These *.xml files can be opened and edited in any text editor or IDE.

xsd file icon xsd 

Files with xsd extension may be typically found as XML schema descriptions that define the structure, content and semantics of XML documents.

xsl file icon xsl 

Files with xsl extension can be usually found as style sheets saved in the eXtensible Style sheet Language for Transformations (XSLT).

xslt file icon xslt 

The .xslt file extension is related to the XSLT XML formatted document.

This is a list of some the most common file types from this category and may change in time as the popularity and significance of some formats can change. Whole category of internet related files contains now 407 file types. Show all internet related files.

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