.JSONLD | Microsoft Corporation | Datafiler | Microsoft Visual Studio Data File | Microsoft Visual Studio | Microsoft Corporation |
.JSP | Oracle Corporation | Webfiler | Java Server Page | Microsoft Edge | Microsoft Corporation |
.JSPA | Xinox Software | Webfiler | Java Servlet Alias | Internet Explorer | Microsoft Corporation |
.JSPF | Oracle Corporation | Udviklerfiler | Java Server Page Fragment | Microsoft Notepad | Microsoft Corporation |
.JSPROJ | Microsoft Corporation | Datafiler | Microsoft Visual Studio Data File | Microsoft Visual Studio | Microsoft Corporation |
.JTF | Various Developers | Rasterbilledfiler | JPEG Tagged Interchange Format | Microsoft Windows Photos | Microsoft Corporation |
.JTP | Microsoft Corporation | Sideopsætningsfiler | Windows Journal Template | Microsoft Windows Journal | Microsoft Corporation |
.JTX | Microsoft Corporation | Sideopsætningsfiler | XPS Document File | Microsoft XPS Viewer | Microsoft Corporation |
.JVS | Opera Software | Webfiler | JavaScript Proxy Autoconfig File | Internet Explorer | Microsoft Corporation |
.JW | Microsoft Corporation | Datafiler | Microsoft WordPad Document | Microsoft WordPad | Microsoft Corporation |
.JWK | Douglas Crockford | Krypterede Filer | JSON Web Key | Microsoft Notepad | Microsoft Corporation |
.JWL | Roxio | Rasterbilledfiler | Roxio Jewel Case File | JustWrite Office | Microsoft Corporation |
.JXR | Microsoft Corporation | Rasterbilledfiler | JPEG XR Image | Microsoft Windows Photos | Microsoft Corporation |
.K25 | Kodak | Kamera Ubehandlede Filer | Kodak K25 Image | Microsoft Windows Photos | Microsoft Corporation |
.KCI | Microsoft Corporation | Indstillingsfiler | Visual Studio .NET DB Project Indexing Settings | Microsoft Visual Studio | Microsoft Corporation |
.KDC | Kaspersky Lab | Datafiler | Kaspersky Virus Database File | Microsoft Windows Photos | Microsoft Corporation |
.KDS | Knyzhov Dmitry | Indstillingsfiler | KD Player Skin File | Microsoft Notepad | Microsoft Corporation |
.KEY | Unknown Developer | Kodet filer | License/ Encrypted Security Key File | Microsoft Windows 7 | Microsoft Corporation |
.KLC | Microsoft Corporation | Indstillingsfiler | Microsoft Keyboard Layout Creator Keyboard Data | Microsoft Keyboard Layout Creator | Microsoft Corporation |
.KOR | Epic Games | Spilfiler | Unreal Engine Language Localization | Microsoft Notepad | Microsoft Corporation |
.KTF | Microsoft Corporation | Tekstfiler | Microsoft Dynamics AX Kernel Text Data | Microsoft Dynamics AX | Microsoft Corporation |
.L | Johan Bontes | Datafiler | Game Of Life File | Microsoft Notepad | Microsoft Corporation |
.LACCDB | Microsoft Corporation | Sideopsætningsfiler | Microsoft Access Lock File | Microsoft Access | Microsoft Corporation |
.LANG | Mojang | Spilfiler | Minecraft Language File | Microsoft Notepad | Microsoft Corporation |
.LASSO | LassoSoft | Webfiler | Lasso Database-Driven Web Page | Internet Explorer | Microsoft Corporation |
.LBT | Microsoft Corporation | Tekstfiler | FoxPro Label Memo | Microsoft Visual FoxPro | Microsoft Corporation |
.LBX | Microsoft Corporation | Datafiler | FoxPro Label File | Microsoft Visual FoxPro | Microsoft Corporation |
.LCN | Microsoft Corporation | Kodet filer | License File | Microsoft Windows | Microsoft Corporation |
.LCX | Cray Inc. | Datafiler | LC Model | Microsoft Notepad | Microsoft Corporation |
.LDB | Microsoft Corporation | Sideopsætningsfiler | Microsoft Access Lock File | Microsoft Access | Microsoft Corporation |
.LDF | Microsoft Corporation | Datafiler | SQL Server Transaction Log File | Microsoft SQL Server | Microsoft Corporation |
.LDIF | Mozilla | Datafiler | LDAP Data Interchange Format File | Active Directory Explorer | Microsoft Corporation |
.LDP | Kevin Yau | Datafiler | Lingoes Dictionary File | Microsoft Windows Server 2016 | Microsoft Corporation |
.LDS | GNU Project | Udviklerfiler | Binutils LD Linker Script | Microsoft Notepad | Microsoft Corporation |
.LE | Microsoft Corporation | Eksekverbare filer | DOS/4GW PM 32X DOS Extender Executable Image | MS-DOS | Microsoft Corporation |
.LESS | Adobe Systems Incorporated | Webfiler | LESS Style Sheet | Visual Studio Code | Microsoft Corporation |
.LGA | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGC | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGD | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGE | Don Ho | Datafiler | Log Data | Microsoft Notepad | Microsoft Corporation |
.LGF | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGG | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGH | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGJ | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGM | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGN | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGP | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGS | Microsoft Corporation | Datafiler | Microsoft Windows Application Log File | Microsoft Windows | Microsoft Corporation |
.LGT | Microsoft Corporation | Indstillingsfiler | Let's Go! Theme File | Let's Go! | Microsoft Corporation |
.LGU | Microsoft Corporation | Datafiler | LG Windows CE Upgrade Data | Microsoft Windows CE Embedded | Microsoft Corporation |
.LGV | Microsoft Corporation | Datafiler | Debugging Tools For Windows Logger Log | Debugging Tools for Windows | Microsoft Corporation |
.LGX | Microsoft Corporation | Systemfiler | Microsoft Windows Received Message Data | Microsoft Windows | Microsoft Corporation |
.LHS | SourceForge | Udviklerfiler | Literate Haskell Script | Microsoft Notepad | Microsoft Corporation |
.LIB | Various Developers | Datafiler | Generic Data Library | Microsoft Visual Studio | Microsoft Corporation |
.LIBRARY-MS | Microsoft Corporation | Systemfiler | Windows Library Description File | Microsoft Windows | Microsoft Corporation |
.LIC | Unknown Developer | Indstillingsfiler | Software License File | Microsoft Visual C++ | Microsoft Corporation |
.LICENSE | Unknown Developer | Datafiler | Generic License File | Microsoft Visual Studio | Microsoft Corporation |
.LIS | SourceForge | Tekstfiler | SQR (Structured Query Reporting) Output File | Microsoft Notepad | Microsoft Corporation |
.LIST | Open Source | Datafiler | APT List File | Microsoft Notepad | Microsoft Corporation |
.LIT | Microsoft Corporation | eBogsfiler | Microsoft Reader eBook File | Microsoft Reader | Microsoft Corporation |
.LKO | Microsoft Corporation | Datafiler | Outlook Express Linked Object | Microsoft Outlook Express | Microsoft Corporation |
.LKP | Microsoft Corporation | Datafiler | Microsoft Systems Management Server (SMS) Data | Microsoft Systems Management Server | Microsoft Corporation |
.LNK | Microsoft Corporation | Systemfiler | Windows File Shortcut | Microsoft Windows | Microsoft Corporation |
.LNT | Gimpel Software | Udviklerfiler | PC-lint/FlexeLint Configuration File | Microsoft Notepad | Microsoft Corporation |
.LOCAL | Embarcadero Technologies | Indstillingsfiler | Delphi User-Specific Project Options | Microsoft Windows | Microsoft Corporation |
.LOCK | Mozilla | Ikke Almindelige Filer | Lock File | Microsoft OneDrive | Microsoft Corporation |
.LOCKED | Unknown Developer | Kodet filer | Ransomware Encrypted File | System Restore | Microsoft Corporation |
.LOCKY | Microsoft Corporation | Kodet filer | Locky Ransomware Encrypted File | System Restore | Microsoft Corporation |
.LOG | Unknown Developer | Tekstfiler | Log File | Microsoft Notepad | Microsoft Corporation |
.LOL | Apple | Udviklerfiler | LOLCODE Source Code FIle | Microsoft Notepad | Microsoft Corporation |
.LPCM | Microsoft Corporation | Lydfiler | Movie Maker Audio | Microsoft Windows Live Movie Maker | Microsoft Corporation |
.LRC | Various Developers | Ikke Almindelige Filer | Lyrics File | Microsoft Windows Media Player | Microsoft Corporation |
.LRD | Microsoft Corporation | Midlertidige Filer | Microsoft Money Lock Data | Microsoft Money | Microsoft Corporation |
.LRF | Aequus Gaming LTD | Spilfiler | League Of Legends Replay File | Microsoft C/C++ | Microsoft Corporation |
.LRM | Microsoft Corporation | Datafiler | Encarta Class Server Learning Resource File | Microsoft Encarta | Microsoft Corporation |
.LRV | Konica Minolta | Datafiler | Konica Minolta Data Management Software Stored File | Microsoft Windows Media Player | Microsoft Corporation |
.LSF | Interscape | Datafiler | Logos Library System File | Microsoft Windows Media Player | Microsoft Corporation |
.LST | Unknown Developer | Tekstfiler | Data List | Microsoft Notepad | Microsoft Corporation |
.LSX | Microsoft Corporation | Videofiler | Streaming Media Shortcut | Microsoft Windows Media Player | Microsoft Corporation |
.LTR | Sublime HQ Pty Ltd | Tekstfiler | Letter Document | Microsoft Notepad | Microsoft Corporation |
.LUA | Unknown Developer | Udviklerfiler | Lua Source File | Microsoft Notepad | Microsoft Corporation |
.LWV | Microsoft Corporation | Lydfiler | Linguistically Enhanced Sound File | Microsoft Agent | Microsoft Corporation |
.LXA | Microsoft Corporation | Ikke Almindelige Filer | Microsoft Speech Lexicon File | Microsoft Office | Microsoft Corporation |
.LYT | Adminsoft | Datafiler | Adminsoft Document Layout File | Microsoft Notepad | Microsoft Corporation |
.M | MathWorks | Udviklerfiler | MATLAB Source Code File | Microsoft Notepad | Microsoft Corporation |
.M11 | Microsoft Corporation | Datafiler | Microsoft Money 2003 Data | Microsoft Money | Microsoft Corporation |
.M15 | Moving Picture Experts Group | Videofiler | MPEG Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M1A | Open Source | Lydfiler | MPEG-1 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M2A | Unknown Developer | Videofiler | MPEG-1 Layer 2 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M2D | HTC | Indstillingsfiler | HTC Manila 2D For Windows Mobile Skin | Windows Mobile | Microsoft Corporation |
.M2P | Moving Picture Experts Group | Videofiler | MPEG-2 Program Stream File | Microsoft Windows Media Player | Microsoft Corporation |
.M2S | Maxthon | Indstillingsfiler | Maxthon 2 Browser Skin File | Microsoft Windows Media Player | Microsoft Corporation |
.M2T | Roxio | Videofiler | HDV Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M2TS | Sony | Videofiler | Blu-ray BDAV Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M2V | Webteh | Videofiler | MPEG-2 Packetized Elementary Stream | Microsoft Windows Media Encoder 9 | Microsoft Corporation |
.M3U | Nullsoft | Lydfiler | Media Playlist File | Microsoft Windows Media Player | Microsoft Corporation |
.M3U8 | Various Developers | Lydfiler | UTF-8 M3U Playlist File | Microsoft Windows Media Player | Microsoft Corporation |
.M4 | Open Source | Udviklerfiler | Macro Processor Library | Microsoft Word | Microsoft Corporation |
.M4A | Apple | Lydfiler | MPEG-4 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M4B | Apple | Lydfiler | MPEG-4 Audio Book File | Microsoft Windows Media Player | Microsoft Corporation |