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