.J | Oracle Corporation | 開發商檔案 | Java Source File | Internet Explorer | Microsoft Corporation |
.JAV | Oracle Corporation | 開發商檔案 | Java Source Code | Microsoft Notepad | Microsoft Corporation |
.JAVA | Oracle Corporation | 開發商檔案 | Java Source Code | Microsoft Notepad | Microsoft Corporation |
.JCK | Microsoft Corporation | 資料檔案 | Microsoft Liquid Motion JACK Scene Escription | Liquid Motion | Microsoft Corporation |
.JET | Microsoft Corporation | 資料庫檔案 | JET Database File | Microsoft Access | Microsoft Corporation |
.JFI | Joint Photographic Experts Group | 光柵圖像檔案 | JPEG File Interchange Image | Windows Photo Gallery | Microsoft Corporation |
.JFIF | Unknown Developer | 光柵圖像檔案 | JPEG File Interchange Format | Internet Explorer | Microsoft Corporation |
.JFW | ESRI | GIS檔案 | JPEG World File | Microsoft Notepad | Microsoft Corporation |
.JGW | ESRI | GIS檔案 | JPEG World File | Microsoft Notepad | Microsoft Corporation |
.JHTML | Oracle Corporation | 網絡文件 | Java HTML Web Page | Internet Explorer | Microsoft Corporation |
.JIF | Joint Photographic Experts Group | 光柵圖像檔案 | JPEG Image | Microsoft Windows Photos | Microsoft Corporation |
.JLB | Microsoft Corporation | 系統檔案 | PAC Mate BX Keyboard Driver | Windows Mobile | Microsoft Corporation |
.JMH | Unknown Developer | 光柵圖像檔案 | JPEG File Interchange Format | Internet Explorer | Microsoft Corporation |
.JNLP | Oracle Corporation | 網絡文件 | Java Web Start File | Microsoft Notepad | Microsoft Corporation |
.JNT | Microsoft Corporation | 資料檔案 | Windows Journal File | Microsoft Windows Journal | Microsoft Corporation |
.JOB | Metamation | CAD檔案 | MetaCAM Nest Job File | Windows Task Scheduler | Microsoft Corporation |
.JOR | Microsoft Corporation | 不常見的文件 | Microsoft SQL Server Journal File | Microsoft SQL Server | Microsoft Corporation |
.JP2 | Joint Photographic Experts Group | 光柵圖像檔案 | JPEG 2000 Core Image File | ACD Systems Canvas | Microsoft Corporation |
.JPEG | Joint Photographic Experts Group | 光柵圖像檔案 | JPEG Image | Microsoft Windows Photos | Microsoft Corporation |
.JPG | Joint Photographic Experts Group | 光柵圖像檔案 | JPEG Image | Microsoft Windows Photos | Microsoft Corporation |
.JPG-LARGE | Zoner Software | 光柵圖像檔案 | Large JPEG Image | Internet Explorer | Microsoft Corporation |
.JPN | Microsoft Corporation | 系統檔案 | Windows Japanese Noise-Word List File | Microsoft Notepad | Microsoft Corporation |
.JPR | Microsoft Corporation | 文字檔 | WordPad Document | Microsoft WordPad | Microsoft Corporation |
.JQX | Microsoft Corporation | 資料檔案 | Microsoft Windows Help-Related File | Microsoft Windows | Microsoft Corporation |
.JRS | Microsoft Corporation | 備份檔案 | Extensible Storage Engine (ESE) Reserve Transaction Log | Microsoft Exchange Server | Microsoft Corporation |
.JS | NetScape | 網絡文件 | JavaScript File | Microsoft Edge | Microsoft Corporation |
.JSCRIPT | NetScape | 網絡文件 | JavaScript File | Microsoft Edge | Microsoft Corporation |
.JSE | Microsoft Corporation | 可執行檔案 | JScript Encoded File | Microsoft Visual Studio | Microsoft Corporation |
.JSON | Mozilla | 備份檔案 | Mozilla Firefox Bookmarks Backup | Microsoft Notepad | Microsoft Corporation |
.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 |