| Extension Abbreviation | Extension Full name | How to open the File Extension |
|---|---|---|
| .a4p | A4Desk Pro Project File | How to open .a4p file |
| .a5w | Alpha Five Webpage File | How to open .a5w file |
| .adr | Opera Bookmarks File | How to open .adr file |
| .aex | Alpha Five Compiled Global Functions File | How to open .aex file |
| .alx | ActiveX Layout Control File | How to open .alx file |
| .an | Adobe Edge Animate Project File | How to open .an file |
| .ap | Active Page | How to open .ap file |
| .appcache | HTML5 Cache Manifest File | How to open .appcache file |
| .aro | SteelArrow Web Application File | How to open .aro file |
| .asa | ASP Configuration File | How to open .asa file |
| .asax | ASP.NET Server Application File | How to open .asax file |
| .ascx | ASP.NET User Control File | How to open .ascx file |
| .ashx | ASP.NET Web Handler File | How to open .ashx file |
| .asmx | ASP.NET Web Service File | How to open .asmx file |
| .asp | Active Server Page | How to open .asp file |
| .aspx | Active Server Page Extended File | How to open .aspx file |
| .asr | ActionScript Remote Document | How to open .asr file |
| .att | Web Form Post Data File | How to open .att file |
| .awm | AllWebMenus Project File | How to open .awm file |
| .axd | ASP.NET Web Handler File | How to open .axd file |
| .bml | Bean Markup Language File | How to open .bml file |
| .bok | ProStores Dynamic Webpage | How to open .bok file |
| .br | Brotli Compressed File | How to open .br file |
| .browser | ASP.NET Browser Definition File | How to open .browser file |
| .btapp | uTorrent App | How to open .btapp file |
| .bwp | BuRg3r Web Page | How to open .bwp file |
| .ccbjs | CopperCube JavaScript File | How to open .ccbjs file |
| .cer | Internet Security Certificate | How to open .cer file |
| .cfm | ColdFusion Markup File | How to open .cfm file |
| .cfml | ColdFusion Markup Language File | How to open .cfml file |
| .cms | Content Management System | How to open .cms file |
| .codasite | Coda Site File | How to open .codasite file |
| .compressed | WordCompress Compacted Webpage | How to open .compressed file |
| .con | Concept Application Source File | How to open .con file |
| .cpg | Cool Page Project File | How to open .cpg file |
| .cphd | CloudChan Pre-processed Hypertext Document | How to open .cphd file |
| .crdownload | Chrome Partially Downloaded File | How to open .crdownload file |
| .crl | Certificate Revocation List File | How to open .crl file |
| .crt | Security Certificate | How to open .crt file |
| .cshtml | ASP.NET Razor Webpage | How to open .cshtml file |
| .csp | Concept Server Page | How to open .csp file |
| .csr | Certificate Signing Request File | How to open .csr file |
| .css | Cascading Style Sheet | How to open .css file |
| .dap | Access Data Access Page | How to open .dap file |
| .dbm | ColdFusion Server File | How to open .dbm file |
| .dcr | Shockwave Media File | How to open .dcr file |
| .der | DER Certificate File | How to open .der file |
| .dhtml | Dynamic HTML file | How to open .dhtml file |
| .disco | DISCO Discovery Document | How to open .disco file |
| .discomap | DISCO Discovery Output File | How to open .discomap file |
| .dml | DynaScript File | How to open .dml file |
| .do | Java Servlet | How to open .do file |
| .docmhtml | Microsoft Word MIME HTML Document | How to open .docmhtml file |
| .dochtml | Microsoft Word HTML Document | How to open .dochtml file |
| .dothtml | Microsoft Word HTML Document Template | How to open .dothtml file |
| .download | Partially Downloaded File | How to open .download file |
| .dwt | Dreamweaver Webpage Template | How to open .dwt file |
| .ece | Escenic Dynamic Web Page | How to open .ece file |
| .edge | Adobe Edge Project File | How to open .edge file |
| .epibrw | Web File Location | How to open .epibrw file |
| .esproj | Espresso Project File | How to open .esproj file |
| .ewp | Ewisoft Website Project File | How to open .ewp file |
| .faces | JavaServer FacesServlet Pointer | How to open .faces file |
| .fcgi | FastCGI File | How to open .fcgi file |
| .fmp | 123 Flash Menu Project | How to open .fmp file |
| .freeway | Freeway Document | How to open .freeway file |
| .fwp | Microsoft Expression Web Package | How to open .fwp file |
| .fwtb | Freeway Template Bundle | How to open .fwtb file |
| .fwtemplate | Freeway Template | How to open .fwtemplate file |
| .fwtemplateb | Freeway Template Bundle | How to open .fwtemplateb file |
| .gne | Flickr Webpage | How to open .gne file |
| .gsp | IMail Error Message File | How to open .gsp file |
| .gsp | Groovy Server Page | How to open .gsp file |
| .h5p | HTML5 Content Package | How to open .h5p file |
| .har | HTTP Archive FIle | How to open .har file |
| .hdm | HDML File | How to open .hdm file |
| .hdml | Handheld Device Markup Language File | How to open .hdml file |
| .htaccess | Apache HTACCESS File | How to open .htaccess file |
| .htc | HTML Component File | How to open .htc file |
| .htm | Hypertext Markup Language File | How to open .htm file |
| .html | Hypertext Markup Language File | How to open .html file |
| .htx | HTML Extension File | How to open .htx file |
| .hxs | Help 2 Compiled Help File | How to open .hxs file |
| .hype | Hype Document | How to open .hype file |
| .hyperesources | Hype Resources Folder | How to open .hyperesources file |
| .hypesymbol | Hype Symbol File | How to open .hypesymbol file |
| .hypetemplate | Hype Document Template | How to open .hypetemplate file |
| .cha | IRC Chat Configuration File | How to open .cha file |
| .chat | IRC Chat Configuration File | How to open .chat file |
| .chm | Compiled HTML Help File | How to open .chm file |
| .idc | Internet Database Connector File | How to open .idc file |
| .iqy | Internet Query | How to open .iqy file |
| .itms | iTunes Music Store Link File | How to open .itms file |
| .itpc | iTunes Podcast Link File | How to open .itpc file |
| .iwdgt | iWeb Widget File | How to open .iwdgt file |
| .jcz | Liquid Motion Animation | How to open .jcz file |
| .jhtml | Java HTML Web Page | How to open .jhtml file |
| .jnlp | Java Web Start File | How to open .jnlp file |
| .js | JavaScript File | How to open .js file |
| .json | JavaScript Object Notation File | How to open .json file |
| .jsonl | JSON Lines File | How to open .jsonl file |
| .jsp | Java Server Page | How to open .jsp file |
| .jspa | Java Servlet Alias | How to open .jspa file |
| .jspx | XML Java Server Page | How to open .jspx file |
| .jss | JavaScript Style Sheet File | How to open .jss file |
| .jst | JavaServer Page Document | How to open .jst file |
| .jvs | JavaScript Proxy Autoconfig File | How to open .jvs file |
| .jws | Java Web Services File | How to open .jws file |
| .kit | CodeKit File | How to open .kit file |
| .maff | Mozilla Archive Format File | How to open .maff file |
| .mapx | Mapjects Client Webparts File | How to open .mapx file |
| .master | ASP.NET Master Page | How to open .master file |
| .mht | MHTML Web Archive | How to open .mht file |
| .mhtml | MIME HTML File | How to open .mhtml file |
| .mjs | Node.js ES Module File | How to open .mjs file |
| .moz | Mozilla Cache File | How to open .moz file |
| .mspx | Microsoft ASP.NET Web Page | How to open .mspx file |
| .muse | Adobe Muse Website Project | How to open .muse file |
| .mvc | MivaScript Compiled File | How to open .mvc file |
| .mvr | IBM HotMedia Multimedia File | How to open .mvr file |
| .ndjson | Newline Delimited JSON File | How to open .ndjson file |
| .nod | NetObjects Fusion File | How to open .nod file |
| .node | Node.js Binary Addon File | How to open .node file |
| .nxg | eSite Builder NXG Web Page | How to open .nxg file |
| .nzb | NewzBin Usenet Index File | How to open .nzb file |
| .oam | Adobe Edge Animate Widget File | How to open .oam file |
| .obml | Opera Mini Saved Webpage | How to open .obml file |
| .obml15 | Opera Mini Saved Webpage | How to open .obml15 file |
| .obml16 | Opera Mini Saved Webpage | How to open .obml16 file |
| .ognc | Dynamic Web Page | How to open .ognc file |
| .olp | Office Live Package | How to open .olp file |
| .opml | Outline Processor Markup Language File | How to open .opml file |
| .oth | OpenDocument HTML Template | How to open .oth file |
| .p12 | Personal Information Exchange File | How to open .p12 file |
| .p7 | PKCS #7 Digital Certificate File | How to open .p7 file |
| .p7b | PKCS #7 Certificate File | How to open .p7b file |
| .p7c | PKCS #7 Certificate File | How to open .p7c file |
| .pac | Proxy Auto-Config File | How to open .pac file |
| .page | HybridJava Web Page | How to open .page file |
| .pem | Privacy Enhanced Mail Certificate | How to open .pem file |
| .php | PHP Source Code File | How to open .php file |
| .php2 | PHP 2 Web Page | How to open .php2 file |
| .php3 | PHP 3 Web Page | How to open .php3 file |
| .php4 | PHP 4 Web Page | How to open .php4 file |
| .php5 | PHP 5 Web Page | How to open .php5 file |
| .phtm | PHP-Based Web Page | How to open .phtm file |
| .phtml | PHP Web Page | How to open .phtml file |
| .ppthtml | Microsoft PowerPoint HTML Presentation | How to open .ppthtml file |
| .pptmhtml | Microsoft PowerPoint MIME HTML Presentation | How to open .pptmhtml file |
| .prf | PICS Rules File | How to open .prf file |
| .psp | PL/SQL Server Page | How to open .psp file |
| .ptw | AutoCAD Publish To Web File | How to open .ptw file |
| .qbo | QuickBooks Online Bank Statement File | How to open .qbo file |
| .qbx | Blocks Landing Page File | How to open .qbx file |
| .qf | Qompose Web Page Template | How to open .qf file |
| .qrm | Qworum Message File | How to open .qrm file |
| .rhtml | Ruby HTML Web Page | How to open .rhtml file |
| .rt | RealText Streaming Text File | How to open .rt file |
| .rw3 | RapidWeaver 3 Site File | How to open .rw3 file |
| .rwp | RapidWeaver Package | How to open .rwp file |
| .rwsw | RapidWeaver Site File | How to open .rwsw file |
| .rwtheme | RapidWeaver Theme | How to open .rwtheme file |
| .sass | Syntactically Awesome StyleSheets File | How to open .sass file |
| .saveddeck | Nokia Saved Web Page | How to open .saveddeck file |
| .scss | Sass Cascading Style Sheet | How to open .scss file |
| .sdb | SocialDecks Blog File | How to open .sdb file |
| .seam | Seam Framework Java Servlet File | How to open .seam file |
| .sht | HTML File with Server Side Includes | How to open .sht file |
| .shtm | HTML Server Side Include File | How to open .shtm file |
| .shtml | Server Side Include HTML File | How to open .shtml file |
| .site | GoLive Website Project File | How to open .site file |
| .sitemap | ASP.NET Site Map File | How to open .sitemap file |
| .sites | iWeb Website Design Project | How to open .sites file |
| .sites2 | iWeb Website Design Project | How to open .sites2 file |
| .sparkle | Sparkle Website Project | How to open .sparkle file |
| .spc | Software Publisher Certificate File | How to open .spc file |
| .srf | Server Response File | How to open .srf file |
| .ssp | Scala Server Page | How to open .ssp file |
| .stc | Contribute Connection Key File | How to open .stc file |
| .stl | Certificate Trust List | How to open .stl file |
| .stml | SSI HTML File | How to open .stml file |
| .stp | SharePoint Template | How to open .stp file |
| .strm | Stream Location File | How to open .strm file |
| .suck | SiteSucker Website File | How to open .suck file |
| .svc | WCF Web Service File | How to open .svc file |
| .svr | Compressed Virtual World | How to open .svr file |
| .swz | Adobe Flash Player Cache File | How to open .swz file |
| .tpl | PrestaShop Template File | How to open .tpl file |
| .tvpi | TitanTV Television Listing File | How to open .tvpi file |
| .tvvi | TitanTV Television Listing File | How to open .tvvi file |
| .ucf | WebEx Media File | How to open .ucf file |
| .uhtml | UC Browser Saved Webpage | How to open .uhtml file |
| .url | Internet Shortcut | How to open .url file |
| .vbd | Visual Basic ActiveX Document | How to open .vbd file |
| .vbhtml | ASP.NET Razor Web Page | How to open .vbhtml file |
| .vdw | Visio Web Drawing | How to open .vdw file |
| .vlp | LiveSite Project | How to open .vlp file |
| .vrml | VRML File | How to open .vrml file |
| .vrt | Virtual World | How to open .vrt file |
| .vsdisco | DISCO Dynamic Discovery Document | How to open .vsdisco file |
| .wbs | WebBlender Project File | How to open .wbs file |
| .wbxml | WAP Binary XML File | How to open .wbxml file |
| .web | Xara Web Document | How to open .web file |
| .webarchive | Safari Web Archive | How to open .webarchive file |
| .webarchivexml | Android Web Browser Archive | How to open .webarchivexml file |
| .webbookmark | Safari Web Bookmark File | How to open .webbookmark file |
| .webhistory | Safari Web History File | How to open .webhistory file |
| .webloc | macOS Website Location | How to open .webloc file |
| .website | Internet Explorer Pinned Site Shortcut | How to open .website file |
| .wgp | Web Gallery Project | How to open .wgp file |
| .wgt | Opera Widget File | How to open .wgt file |
| .whtt | HTTrack Website Copier File | How to open .whtt file |
| .widget | HybridJava Widget | How to open .widget file |
| .wml | Wireless Markup Language File | How to open .wml file |
| .wn | WN Web File | How to open .wn file |
| .woa | WebObjects Application | How to open .woa file |
| .wpp | WebPlus Project File | How to open .wpp file |
| .wpx | WebPlus Project Template | How to open .wpx file |
| .wrf | WebEx Recording | How to open .wrf file |
| .wsdl | Web Services Description Language File | How to open .wsdl file |
| .xbel | XBEL Bookmarks File | How to open .xbel file |
| .xbl | Extensible Binding Language File | How to open .xbl file |
| .xfdl | XFDL File | How to open .xfdl file |
| .xht | XHTML File | How to open .xht file |
| .xhtm | Extensible Hypertext Markup Language Document | How to open .xhtm file |
| .xhtml | Extensible Hypertext Markup Language File | How to open .xhtml file |
| .xpd | XML Pipeline Document | How to open .xpd file |
| .xss | XML Style Sheet | How to open .xss file |
| .xul | XML User Interface Language File | How to open .xul file |
| .xws | Xara Web Designer Graphic | How to open .xws file |
| .zfo | XSL-FO Online Form | How to open .zfo file |
| .zhtml | RabbitWeb Webpage | How to open .zhtml file |
| .zhtml | Secure IE Zipped HTML File | How to open .zhtml file |
| .zul | ZK User Interface File | How to open .zul file |
| .zvz | Possible Virus File | How to open .zvz file |
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