| .509 | Microsoft Corporation | Fișiere web | Internet Security Certificate | Internet Explorer | Microsoft Corporation |
| .ADP | Microsoft Corporation | Fişiere de baze de date | Access Project Extension | Internet Explorer | Microsoft Corporation |
| .AHTM | Unknown Developer | Fișiere web | HTML File | Internet Explorer | Microsoft Corporation |
| .ALX | BlackBerry | Fişiere de setări | BlackBerry Application Loader XML File | Internet Explorer | Microsoft Corporation |
| .ASHX | Microsoft Corporation | Fișiere web | ASP.NET Web Handler File | Internet Explorer | Microsoft Corporation |
| .ASPX | Microsoft Corporation | Fișiere web | Active Server Page Extended ASP.NET Script | Internet Explorer | Microsoft Corporation |
| .AXD | Microsoft Corporation | Fișiere web | ASP.NET Web Handler File | Internet Explorer | Microsoft Corporation |
| .BOK | Pearson | Fişiere de date | TestGen Testbank File | Internet Explorer | Microsoft Corporation |
| .BQY | Oracle Corporation | Fișiere neobișnuite | Brio Query File | Internet Explorer | Microsoft Corporation |
| .CDF | Wolfram Research | Fişiere de aranjare în pagină | Computable Document Format File | Internet Explorer | Microsoft Corporation |
| .CER | Microsoft Corporation | Fișiere web | Internet Security Certificate | Internet Explorer | Microsoft Corporation |
| .CHK | Sophos | Fişiere de date | InterCheck Checksum Database | Internet Explorer | Microsoft Corporation |
| .CHL | Leadtek Research | Fişiere de setări | WinFast PVR2 Channel List | Internet Explorer | Microsoft Corporation |
| .CMP | Microsoft Corporation | Fişiere de setări | Windows Connection Manager Profile | Internet Explorer | Microsoft Corporation |
| .CMS | Opera Software | Fișiere web | Content Management System Web Page File | Internet Explorer | Microsoft Corporation |
| .CPC | Cartesian Products, Inc. | Fişiere de imagini rastru | CPC Compressed Image File | Internet Explorer | Microsoft Corporation |
| .CRT | Mozilla | Fișiere web | Security Certificate | Internet Explorer | Microsoft Corporation |
| .DAT | Unknown Developer | Fişiere de jocuri | Game Data | Internet Explorer | Microsoft Corporation |
| .DBM | Adobe Systems Incorporated | Fișiere web | ColdFusion Server File | Internet Explorer | Microsoft Corporation |
| .DER | Mozilla | Fișiere web | DER Certificate File | Internet Explorer | Microsoft Corporation |
| .DIAGSESSION | Microsoft Corporation | Fişiere de programator | Diagnostics Session File | Internet Explorer | Microsoft Corporation |
| .DLL | Microsoft Corporation | Fişiere de sistem | Dynamic Link Library | Internet Explorer | Microsoft Corporation |
| .DML | Sybase, Inc | Fișiere web | DynaScript File | Internet Explorer | Microsoft Corporation |
| .DO | Unknown Developer | Fișiere web | Java Servlet | Internet Explorer | Microsoft Corporation |
| .ECE | Escenic | Fișiere web | Escenic Dynamic Web Page | Internet Explorer | Microsoft Corporation |
| .HQZ | Microsoft Corporation | Fişiere de date | Internet Explorer For Mac File | Internet Explorer | Microsoft Corporation |
| .HT | Hilgraeve Inc | Fişiere de setări | HyperTerminal Session File | Internet Explorer | Microsoft Corporation |
| .HT3 | Unknown Developer | Fișiere web | HTML File | Internet Explorer | Microsoft Corporation |
| .HTA | Microsoft Corporation | Fişiere executabile | HTML Application | Internet Explorer | Microsoft Corporation |
| .HTC | Microsoft Corporation | Fișiere web | HTML Component File | Internet Explorer | Microsoft Corporation |
| .HTM | Various Developers | Fișiere web | Hypertext Markup Language File | Internet Explorer | Microsoft Corporation |
| .HTML | Various Developers | Fișiere web | Hypertext Markup Language File | Internet Explorer | Microsoft Corporation |
| .HTMLS | Open Source | Fișiere web | HTML With Server-Side Include | Internet Explorer | Microsoft Corporation |
| .ICW | Microsoft Corporation | Fişiere de setări | Microsoft Internet Explorer Internet Connection Wizard Data | Internet Explorer | Microsoft Corporation |
| .IDQ | Microsoft Corporation | Fişiere de date | Microsoft Internet Explorer Data Query File | Internet Explorer | Microsoft Corporation |
| .IHTML | Mozilla | Fișiere web | Inline HyperText Markup Language File | Internet Explorer | Microsoft Corporation |
| .INS | Open Source | Fişiere de date | LaTeX Installer Script | Internet Explorer | Microsoft Corporation |
| .IWS | JetBrains | Fişiere de programator | IntelliJ IDEA Web Page | Internet Explorer | Microsoft Corporation |
| .J | Oracle Corporation | Fişiere de programator | Java Source File | Internet Explorer | Microsoft Corporation |
| .JFIF | Unknown Developer | Fişiere de imagini rastru | JPEG File Interchange Format | Internet Explorer | Microsoft Corporation |
| .JHTML | Oracle Corporation | Fișiere web | Java HTML Web Page | Internet Explorer | Microsoft Corporation |
| .JMH | Unknown Developer | Fişiere de imagini rastru | JPEG File Interchange Format | Internet Explorer | Microsoft Corporation |
| .JPG-LARGE | Zoner Software | Fişiere de imagini rastru | Large JPEG Image | Internet Explorer | Microsoft Corporation |
| .JSPA | Xinox Software | Fișiere web | Java Servlet Alias | Internet Explorer | Microsoft Corporation |
| .JVS | Opera Software | Fișiere web | JavaScript Proxy Autoconfig File | Internet Explorer | Microsoft Corporation |
| .LASSO | LassoSoft | Fișiere web | Lasso Database-Driven Web Page | Internet Explorer | Microsoft Corporation |
| .MAP | id Software | Fişiere de jocuri | Quake Engine Map File | Internet Explorer | Microsoft Corporation |
| .MHT | Various Developers | Fișiere web | MHTML Web Archive | Internet Explorer | Microsoft Corporation |
| .MHTM | Microsoft Corporation | Fișiere web | Mime HTML (MHTML) File | Internet Explorer | Microsoft Corporation |
| .MHTML | Microsoft Corporation | Fișiere web | Mime HTML (MHTML) File | Internet Explorer | Microsoft Corporation |
| .MSPX | Microsoft Corporation | Fișiere web | Microsoft ASP.NET Web Page | Internet Explorer | Microsoft Corporation |
| .NMF | ESRI | Fişiere GIS | ArcGIS Explorer Map File | Internet Explorer | Microsoft Corporation |
| .ODC | Microsoft Corporation | Fişiere de setări | Office Data Connection File | Internet Explorer | Microsoft Corporation |
| .PAC | NetScape | Fișiere web | Proxy Auto-Config File | Internet Explorer | Microsoft Corporation |
| .PARTIAL | Microsoft Corporation | Fișiere neobișnuite | Internet Explorer Partially Downloaded File | Internet Explorer | Microsoft Corporation |
| .PHP4 | Open Source | Fișiere web | PHP 4 Web Page | Internet Explorer | Microsoft Corporation |
| .PHT | Microsoft Corporation | Fișiere web | Partial Hypertext | Internet Explorer | Microsoft Corporation |
| .PHTML | Opera Software | Fișiere web | PHP Web Page | Internet Explorer | Microsoft Corporation |
| .PJPEG | Microsoft Corporation | Fişiere de imagini rastru | Progressive JPEG Image | Internet Explorer | Microsoft Corporation |
| .PRF | Microsoft Corporation | Fişiere de setări | Outlook Profile File | Internet Explorer | Microsoft Corporation |
| .QRM | Armangil Software | Fișiere web | Qworum Message File | Internet Explorer | Microsoft Corporation |
| .RHTML | Yukihiro “Matz” Matsumoto | Fișiere web | Ruby HTML Web Page | Internet Explorer | Microsoft Corporation |
| .RMH | Microsoft Corporation | Fişiere de date | Rights-Managed HTML Document File | Internet Explorer | Microsoft Corporation |
| .RMT | The Catalina Group | Fişiere de sistem | Router Firmware File | Internet Explorer | Microsoft Corporation |
| .RTC | Brain Innovation | Fişiere de date | BrainVoyager QX Design Matrix File | Internet Explorer | Microsoft Corporation |
| .SDL | Microsoft Corporation | Fişiere de programator | Service Description Language File | Internet Explorer | Microsoft Corporation |
| .SHTM | Opera Software | Fişiere video | HTML Server Side Include File | Internet Explorer | Microsoft Corporation |
| .SMIL | "Synchronized Multimedia" Working Group (SYMM WG) | Fişiere video | SMIL(Synchronized Multimedia Integration Language) Presentation File | Internet Explorer | Microsoft Corporation |
| .SML | ESRI | Fişiere de programator | ARC/INFO Simple Macro Language File | Internet Explorer | Microsoft Corporation |
| .SPOP | Opera Software | Fişiere de date | InterTrust SPOP File | Internet Explorer | Microsoft Corporation |
| .SSH | Microsoft Corporation | Fișiere web | Microsoft Internet Explorer Style Sheet | Internet Explorer | Microsoft Corporation |
| .STM | Microsoft Corporation | Fişiere de date | Exchange Streaming Media File | Internet Explorer | Microsoft Corporation |
| .TMP | Mozilla | Fişiere de rezervă | General Temporary File | Internet Explorer | Microsoft Corporation |
| .URL | Microsoft Corporation | Fișiere web | Internet Shortcut | Internet Explorer | Microsoft Corporation |
| .VBD | Microsoft Corporation | Fișiere web | Visual Basic ActiveX Document | Internet Explorer | Microsoft Corporation |
| .VRT | Superscape | Fișiere web | Virtual World | Internet Explorer | Microsoft Corporation |
| .W | Progress Software Corporation | Fişiere de programator | OpenEdge Architect Source Code File | Internet Explorer | Microsoft Corporation |
| .WAF | Microsoft Corporation | Fișiere temporare | Internet Explorer For Mac Cache | Internet Explorer | Microsoft Corporation |
| .WEBM | Google | Fişiere video | WebM Video File | Internet Explorer | Microsoft Corporation |
| .WEBSITE | Microsoft Corporation | Fișiere web | Internet Explorer Pinned Site Shortcut | Internet Explorer | Microsoft Corporation |
| .WML | Syncro Soft | Fișiere web | Wireless Markup Language File | Internet Explorer | Microsoft Corporation |
| .WMV | Microsoft Corporation | Fişiere video | Windows Media Video File | Internet Explorer | Microsoft Corporation |
| .WOA | Apple | Fișiere web | WebObjects Application | Internet Explorer | Microsoft Corporation |
| .WOFF | Open Source | Fişiere de caractere | Web Open Font Format File | Internet Explorer | Microsoft Corporation |
| .XBAP | Microsoft Corporation | Fişiere executabile | XAML Browser Application File | Internet Explorer | Microsoft Corporation |
| .XHTM | Opera Software | Fișiere web | Extensible Hypertext Markup Language Document | Internet Explorer | Microsoft Corporation |
| .XHTML | Opera Software | Fișiere web | Extensible Hypertext Markup Language Document | Internet Explorer | Microsoft Corporation |
din 1 
