| # | 
										Extensión de archivo | 
										Desarrollador | 
									
								
						
								
									| 0 | 
									.J - Java Source Code | 
									Oracle | 
								
					
 						
								
									| 1 | 
									.J2B - Jazz Jackrabbit 2 Music | 
									Epic Games, Inc. | 
								
					
 						
								
									| 2 | 
									.J2C - JPEG2000 Image Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 3 | 
									.J2D - Jazz Jackrabbit Data | 
									Epic Games, Inc. | 
								
					
 						
								
									| 4 | 
									.J2E - Jazz Jackrabbit 2 Episode | 
									Epic Games, Inc. | 
								
					
 						
								
									| 5 | 
									.J2I - Jazz Jackrabbit 2 Internet Server Link Format | 
									Epic Games | 
								
					
 						
								
									| 6 | 
									.J2K - JPEG2000 Code Stream Image | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 7 | 
									.J2L - Jazz Jackrabbit 2 Level Format | 
									Epic Games | 
								
					
 						
								
									| 8 | 
									.J2SI - Jazz Jackrabbit 2 Internet Server Link | 
									Epic Games, Inc. | 
								
					
 						
								
									| 9 | 
									.J2W - ArcExplorer World | 
									Esri | 
								
					
 						
								
									| 10 | 
									.J3O - JMonkeyEngine 3D Scene | 
									jMonkeyEngine | 
								
					
 						
								
									| 11 | 
									.J6I - Ricoh Digital Camera Image | 
									N/A | 
								
					
 						
								
									| 12 | 
									.JA - Jet Archive | 
									N3V Games | 
								
					
 						
								
									| 13 | 
									.JAC - JaStaCry Encrypted Format | 
									Kai Kretschmann | 
								
					
 						
								
									| 14 | 
									.JACL - IBM WebSphere Server Script | 
									IBM | 
								
					
 						
								
									| 15 | 
									.JAD - Java Application Descriptor Format | 
									Oracle | 
								
					
 						
								
									| 16 | 
									.JADE - Jade Programming Language Source Code | 
									N/A | 
								
					
 						
								
									| 17 | 
									.JAG - Jagex Data Format | 
									Jagex | 
								
					
 						
								
									| 18 | 
									.JAI - Jaikoz Settings | 
									JThink Ltd | 
								
					
 						
								
									| 19 | 
									.JAM - Leisure Suit Larry Magna Cum Laude Archive Format | 
									Sierra Entertainment | 
								
					
 						
								
									| 20 | 
									.JAN - Janome Digitizer Embroidery Object | 
									Janome Sewing Machine Co., Ltd. | 
								
					
 						
								
									| 21 | 
									.JAP - Japanese Nintendo 64 Game ROM | 
									N/A | 
								
					
 						
								
									| 22 | 
									.JAR - Compressed Archive Format Package For Java Classes And Data Format | 
									Oracle | 
								
					
 						
								
									| 23 | 
									.JAR.PACK - Oracle Pack200 Packed JAR Format | 
									Oracle | 
								
					
 						
								
									| 24 | 
									.JARDESC - Eclipse JAR Settings | 
									The Eclipse Foundation | 
								
					
 						
								
									| 25 | 
									.JARVIS - Jarvis Subscriber Format | 
									Jarvis Acting Company | 
								
					
 						
								
									| 26 | 
									.JAS - Corel PaintShop Photo Pro Bitmap Graphics Format | 
									Corel Corporation | 
								
					
 						
								
									| 27 | 
									.JASPER - JasperReports Data Format | 
									Jaspersoft | 
								
					
 						
								
									| 28 | 
									.JAV - Java Language Source Code Format | 
									Oracle | 
								
					
 						
								
									| 29 | 
									.JAVA - Java Language Source Code Format | 
									Oracle | 
								
					
 						
								
									| 30 | 
									.JAVAJET - Eclipse JET Java Template | 
									The Eclipse Foundation | 
								
					
 						
								
									| 31 | 
									.JAX - Java Executable JAR | 
									Oracle Corporation | 
								
					
 						
								
									| 32 | 
									.JB2 - JBIG2 Image Format | 
									Joint Bi-level Image Group | 
								
					
 						
								
									| 33 | 
									.JBC - Jam STAPL Byte-Code Format | 
									Altera | 
								
					
 						
								
									| 34 | 
									.JBF - Corel PaintShop Photo Pro Image Browser Format | 
									Corel | 
								
					
 						
								
									| 35 | 
									.JBG - Image JBIG 1-bit Raster | 
									N/A | 
								
					
 						
								
									| 36 | 
									.JBI - Motoman Robot Job Format | 
									Motoman | 
								
					
 						
								
									| 37 | 
									.JBIG - JBIG Raster Image Graphics | 
									Joint Bi-level Image Group | 
								
					
 						
								
									| 38 | 
									.JBIG2 - JBIG2 | 
									Joint Bi-level Image Group | 
								
					
 						
								
									| 39 | 
									.JBK - Juno Backup Format | 
									Juno | 
								
					
 						
								
									| 40 | 
									.JBL - Doom Scene Add-on | 
									id Software LLC | 
								
					
 						
								
									| 41 | 
									.JBMP - JAmes OS Bitmap Image | 
									JAmes OS | 
								
					
 						
								
									| 42 | 
									.JBR - Corel PaintShop Photo Pro Brushes Format | 
									Corel | 
								
					
 						
								
									| 43 | 
									.JBT - JAWS | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 44 | 
									.JC - FlashGet Partial Download Format | 
									FlashGet | 
								
					
 						
								
									| 45 | 
									.JC! - FlashGet Incomplete Download Format | 
									FlashGet | 
								
					
 						
								
									| 46 | 
									.JCC - Code Crusader Project Data | 
									New Planet Software | 
								
					
 						
								
									| 47 | 
									.JCCFG3 - FlashGet Incomplete Download | 
									Trend Media Corporation Limited | 
								
					
 						
								
									| 48 | 
									.JCD - FlashGet Saved | 
									Trend Media Corporation Limited | 
								
					
 						
								
									| 49 | 
									.JCF - JAWS Configuration | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 50 | 
									.JCLIC - JClic Project Format | 
									JClic | 
								
					
 						
								
									| 51 | 
									.JCM - Java Commerce Message | 
									Oracle Corporation | 
								
					
 						
								
									| 52 | 
									.JCP - Jesusonic Preset Format | 
									Cockos Incorporated | 
								
					
 						
								
									| 53 | 
									.JCRYPT - JCRYPT Encrypted Format | 
									JMasters | 
								
					
 						
								
									| 54 | 
									.JCS - Java Control Source | 
									Oracle Corporation | 
								
					
 						
								
									| 55 | 
									.JCSK - JetCast Skin | 
									JetAudio Inc. | 
								
					
 						
								
									| 56 | 
									.JCT - JCT | 
									SourceForge.net | 
								
					
 						
								
									| 57 | 
									.JCZ - Microsoft Liquid Motion Animation Format | 
									Microsoft | 
								
					
 						
								
									| 58 | 
									.JDB - Norton Antivirus Definiton Update File Format | 
									Symantec | 
								
					
 						
								
									| 59 | 
									.JDC - JDownloader Links Format | 
									The JDownloader Team | 
								
					
 						
								
									| 60 | 
									.JDF - Adobe Acrobat Job Definition Format | 
									Adobe Systems | 
								
					
 						
								
									| 61 | 
									.JDP - BlackBerry JDE | 
									BlackBerry (Research In Motion Limited) | 
								
					
 						
								
									| 62 | 
									.JDW - BlackBerry JDE | 
									BlackBerry (Research In Motion Limited) | 
								
					
 						
								
									| 63 | 
									.JDX - JSpell Dictionary | 
									Page Scholar Inc. | 
								
					
 						
								
									| 64 | 
									.JEB - PENSIM Output | 
									N/A | 
								
					
 						
								
									| 65 | 
									.JED - Xilinx Integrated Software Environment Device Configuration Information Format | 
									Xilinx | 
								
					
 						
								
									| 66 | 
									.JEF - Janome Embroidery Layout Format | 
									Janome | 
								
					
 						
								
									| 67 | 
									.JETINC - Eclipse IDE Template Fragment | 
									The Eclipse Foundation | 
								
					
 						
								
									| 68 | 
									.JEWELQUESTSAVEDGAME - Jewel Quest Saved Game | 
									iWin, Inc. | 
								
					
 						
								
									| 69 | 
									.JFD - JAWS Synopsis | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 70 | 
									.JFF - JAWS Ini | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 71 | 
									.JFFS2 - Journalling Flash File System 2 Disk Image | 
									Various Linux developers | 
								
					
 						
								
									| 72 | 
									.JFI - JPEG File Interchange Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 73 | 
									.JFIF - JPEG Interchange Format | 
									N/A | 
								
					
 						
								
									| 74 | 
									.JFL - SigmaPlot | 
									Systat Software Inc. | 
								
					
 						
								
									| 75 | 
									.JFR - WJVN Fragment | 
									Renato Nobili | 
								
					
 						
								
									| 76 | 
									.JFS - Linux/Unix Journaling System | 
									N/A | 
								
					
 						
								
									| 77 | 
									.JFX - J2 Fax | 
									N/A | 
								
					
 						
								
									| 78 | 
									.JG4 - BigJig Jigsaw Puzzle Format | 
									Lena Games | 
								
					
 						
								
									| 79 | 
									.JGCSCS - EditPad Syntax Scheme | 
									Just Great Software | 
								
					
 						
								
									| 80 | 
									.JGD - Corel PaintShop Photo Pro Gradients | 
									Corel Corporation | 
								
					
 						
								
									| 81 | 
									.JGF - JAWS Ini | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 82 | 
									.JGP - QWS3270 PLUS Session Parameter | 
									Jolly Giant Software Inc. | 
								
					
 						
								
									| 83 | 
									.JGS - QWS3270 PLUS Script | 
									Jolly Giant Software Inc. | 
								
					
 						
								
									| 84 | 
									.JGW - JPEG World Format | 
									ESRI | 
								
					
 						
								
									| 85 | 
									.JGZ - Gzipped JavaScript Format | 
									N/A | 
								
					
 						
								
									| 86 | 
									.JHM - Java Help Mapping | 
									Oracle Corporation | 
								
					
 						
								
									| 87 | 
									.JHTML - ATG Dynamo Server Page (Java HTML) | 
									N/A | 
								
					
 						
								
									| 88 | 
									.JIA - Digital Photo Navigator Album | 
									JVC | 
								
					
 						
								
									| 89 | 
									.JIC - Java Icon Format | 
									N/A | 
								
					
 						
								
									| 90 | 
									.JIF - JPEG Interchange Format | 
									N/A | 
								
					
 						
								
									| 91 | 
									.JIFF - JPG Bitmap Image | 
									N/A | 
								
					
 						
								
									| 92 | 
									.JIG - GameHouse Puzzle Jigsaw Game | 
									GameHouse, Inc. | 
								
					
 						
								
									| 93 | 
									.JIGSAW - Jigsaw Explorer Puzzle Format | 
									Carolina Road Software | 
								
					
 						
								
									| 94 | 
									.JIGZ - Jiggsaw Puzzle | 
									Bitz & Pixelz BV | 
								
					
 						
								
									| 95 | 
									.JIS - Japanese Industry Standard Text Format | 
									N/A | 
								
					
 						
								
									| 96 | 
									.JISP - Tkabber Emoticon Set | 
									N/A | 
								
					
 						
								
									| 97 | 
									.JIT - Aika Online Texture | 
									Gala-Net Inc. | 
								
					
 						
								
									| 98 | 
									.JJ - Doodle C64 Compressed Image Format | 
									N/A | 
								
					
 						
								
									| 99 | 
									.JJF - Flash Jester Jugglor | 
									Flash Jester | 
								
					
 						
								
									| 100 | 
									.JJJS - Claris Organizer Format | 
									Apple, Inc. | 
								
					
 						
								
									| 101 | 
									.JKB - Quake 3 Arena Bot AI | 
									id Software LLC | 
								
					
 						
								
									| 102 | 
									.JKL - Jedi Knight | 
									LucasArts Entertainment Company, LLC | 
								
					
 						
								
									| 103 | 
									.JKM - JAWS Ini Configuration Format | 
									Freedom Scientific | 
								
					
 						
								
									| 104 | 
									.JKS - Jedi Knight Save | 
									LucasArts Entertainment Company, LLC | 
								
					
 						
								
									| 105 | 
									.JL - Julia Source Code Format | 
									Julia | 
								
					
 						
								
									| 106 | 
									.JLB - PAC Mate BX Keyboard Driver | 
									N/A | 
								
					
 						
								
									| 107 | 
									.JLC - Byte Compiled Lisp-based Script | 
									N/A | 
								
					
 						
								
									| 108 | 
									.JLS - JAWS | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 109 | 
									.JMA - NSRT Compressed Game | 
									N/A | 
								
					
 						
								
									| 110 | 
									.JMD - Corel PaintShop Pro Image Map Settings | 
									Corel Corporation | 
								
					
 						
								
									| 111 | 
									.JMF - Java Media Framework | 
									Oracle Corporation | 
								
					
 						
								
									| 112 | 
									.JML - Java Modeling Language Specification | 
									N/A | 
								
					
 						
								
									| 113 | 
									.JMP - SAS JMP Discovery Chart-to-statistics | 
									SAS Institute | 
								
					
 						
								
									| 114 | 
									.JMS - Voxtron TeleButler Interactive Voice Response Call Flow | 
									Voxtron N.V. | 
								
					
 						
								
									| 115 | 
									.JMV - Jnes Record Format | 
									Jabsoft | 
								
					
 						
								
									| 116 | 
									.JMX - Apache JMeter | 
									Apache Software Foundation | 
								
					
 						
								
									| 117 | 
									.JNB - SigmaPlot Workbook | 
									Systat Software Inc. | 
								
					
 						
								
									| 118 | 
									.JNG - JPEG Network Graphic Format | 
									N/A | 
								
					
 						
								
									| 119 | 
									.JNILIB - Mac OS X Java JNI Library Format | 
									Oracle | 
								
					
 						
								
									| 120 | 
									.JNL - Ingres Journal | 
									Actian Corporation | 
								
					
 						
								
									| 121 | 
									.JNLP - Java Network Launching Protocol Format | 
									Oracle | 
								
					
 						
								
									| 122 | 
									.JNT - Microsoft Windows Journal Note Format | 
									Microsoft | 
								
					
 						
								
									| 123 | 
									.JNX - Garmin Raster Map | 
									N/A | 
								
					
 						
								
									| 124 | 
									.JO - Jo Audio Format | 
									Abadie-jo | 
								
					
 						
								
									| 125 | 
									.JO-7Z - Jo Audio Format | 
									Abadie-jo | 
								
					
 						
								
									| 126 | 
									.JOB - Microsoft Windows Task Scheduler Task Object Format | 
									Microsoft | 
								
					
 						
								
									| 127 | 
									.JOBOPTIONS - Adobe Acrobat Job Options Format | 
									Adobe Systems | 
								
					
 						
								
									| 128 | 
									.JOBS - VirtualDub Job | 
									Avery Lee | 
								
					
 						
								
									| 129 | 
									.JOD - Microsoft Jet OLEDB.4.0 | 
									Microsoft Corporation | 
								
					
 						
								
									| 130 | 
									.JOE - .joe Editor Document Format | 
									Cyril Hicks | 
								
					
 						
								
									| 131 | 
									.JOINED - HJSplit Data Format | 
									Freebyte | 
								
					
 						
								
									| 132 | 
									.JOML - JOOB Object Modelling Language | 
									Microsoft Corporation | 
								
					
 						
								
									| 133 | 
									.JOMPROJ - Microsoft Visual Studio JOOB Object Model Project | 
									Microsoft Corporation | 
								
					
 						
								
									| 134 | 
									.JOR - Microsoft SQL Server Journal | 
									Microsoft Corporation | 
								
					
 						
								
									| 135 | 
									.JOT - Jot+ Notes Note Data | 
									King Stairs Software | 
								
					
 						
								
									| 136 | 
									.JOURNAL.DOC - SolidWorks Design Journal Template | 
									SolidWorks Corporation | 
								
					
 						
								
									| 137 | 
									.JOURNAL_INFO_BLOCK - Apple Mac OS Xsystem | 
									Apple, Inc. | 
								
					
 						
								
									| 138 | 
									.JOY - CryENGINE Facial Editor Joystick Settings Format | 
									Crytek | 
								
					
 						
								
									| 139 | 
									.JP1 - Japanese (Romaji) Text Format | 
									N/A | 
								
					
 						
								
									| 140 | 
									.JP2 - JPEG 2000 Image Format (ISO 15444-1) Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 141 | 
									.JP3 - Electric Quilt | 
									Electric Quilt | 
								
					
 						
								
									| 142 | 
									.JP4 - Electric Quilt | 
									Electric Quilt | 
								
					
 						
								
									| 143 | 
									.JP5 - Electric Quilt | 
									Electric Quilt | 
								
					
 						
								
									| 144 | 
									.JPA - Joomla Installation Backup | 
									N/A | 
								
					
 						
								
									| 145 | 
									.JPAGE - Eclipse Java Scrapbook Page | 
									The Eclipse Foundation | 
								
					
 						
								
									| 146 | 
									.JPB - Publish Manager Report | 
									JSoftware | 
								
					
 						
								
									| 147 | 
									.JPC - JPEG2000 Code Stream Image Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 148 | 
									.JPD - Joint PhotoDefiner Image Format | 
									N/A | 
								
					
 						
								
									| 149 | 
									.JPE - JPEG Bitmap Image Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 150 | 
									.JPEG - JPEG Bitmap Image Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 151 | 
									.JPEGENX - Egis Encrypted JPEG | 
									Egis Technology Inc. | 
								
					
 						
								
									| 152 | 
									.JPEG_160X120 - 160 X 120 Pixels JPEG Image | 
									N/A | 
								
					
 						
								
									| 153 | 
									.JPEG_170X220 - 170 X 220 Pixels JPEG Image | 
									N/A | 
								
					
 						
								
									| 154 | 
									.JPF - JPEG 2000 Extended Image Format (ISO 15444-2) Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 155 | 
									.JPG - JPEG Bitmap Image Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 156 | 
									.JPG2 - JPEG 2000 Image Format (ISO 15444-1) Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 157 | 
									.JPGENX - Egis Encrypted JPG | 
									Egis Technology Inc. | 
								
					
 						
								
									| 158 | 
									.JPGW - JPEG World Format | 
									ESRI | 
								
					
 						
								
									| 159 | 
									.JPGX - Egis Encrypted JPG Bitmap Image | 
									Egis Technology Inc. | 
								
					
 						
								
									| 160 | 
									.JPG_108X192 - Android Picture | 
									N/A | 
								
					
 						
								
									| 161 | 
									.JPG_128X128 - Android Picture | 
									N/A | 
								
					
 						
								
									| 162 | 
									.JPG_128X160 - Android Picture | 
									N/A | 
								
					
 						
								
									| 163 | 
									.JPG_128X96 - Android Picture | 
									N/A | 
								
					
 						
								
									| 164 | 
									.JPG_160X120 - Android Picture | 
									N/A | 
								
					
 						
								
									| 165 | 
									.JPG_160X128 - Android Picture | 
									N/A | 
								
					
 						
								
									| 166 | 
									.JPG_170X128 - Android Picture | 
									N/A | 
								
					
 						
								
									| 167 | 
									.JPG_170X220 - Android Picture | 
									N/A | 
								
					
 						
								
									| 168 | 
									.JPG_220X176 - Android Picture | 
									N/A | 
								
					
 						
								
									| 169 | 
									.JPG_240X320 - Android Picture | 
									Google Inc. | 
								
					
 						
								
									| 170 | 
									.JPG_320X240 - Android Picture | 
									N/A | 
								
					
 						
								
									| 171 | 
									.JPG_320X320 - Android Picture | 
									N/A | 
								
					
 						
								
									| 172 | 
									.JPG_480X320 - Android Picture | 
									N/A | 
								
					
 						
								
									| 173 | 
									.JPG_512X512 - Android Picture | 
									Google Inc. | 
								
					
 						
								
									| 174 | 
									.JPG_56X42 - Android Picture | 
									N/A | 
								
					
 						
								
									| 175 | 
									.JPG_T - JPEG Image | 
									N/A | 
								
					
 						
								
									| 176 | 
									.JPH - JProbe Memory Snapshot Format | 
									Quest | 
								
					
 						
								
									| 177 | 
									.JPI - Jupiter Encrypted XML | 
									Elfin Sp. z o.o. | 
								
					
 						
								
									| 178 | 
									.JPL - JProbe Settings | 
									Quest Software, Inc. | 
								
					
 						
								
									| 179 | 
									.JPM - JPEG 2000 Multi-layer Image Format (ISO 15444-6) | 
									N/A | 
								
					
 						
								
									| 180 | 
									.JPN - Windows Japanese Noise-Word List Format | 
									Microsoft | 
								
					
 						
								
									| 181 | 
									.JPP - Jigsaw Puzzle Player Puzzle Definition | 
									N/A | 
								
					
 						
								
									| 182 | 
									.JPR - Oracle JDeveloper Model Project | 
									Embarcadero Technologies | 
								
					
 						
								
									| 183 | 
									.JPS - Stereospic JPEG Format | 
									N/A | 
								
					
 						
								
									| 184 | 
									.JPT - Jprobe Threadalyzer Memory Snapshot | 
									Quest Software, Inc. | 
								
					
 						
								
									| 185 | 
									.JPW - ESRI JPEG World Format | 
									ESRI | 
								
					
 						
								
									| 186 | 
									.JPX - JPEG 2000 Extended Image Format (ISO 15444-2) Format | 
									Joint Photographic Experts Group | 
								
					
 						
								
									| 187 | 
									.JPZ - Puzzle Solver Puzzle | 
									N/A | 
								
					
 						
								
									| 188 | 
									.JQ3SAVEGAME - Jewel Quest III Saved Game | 
									iWin, Inc. | 
								
					
 						
								
									| 189 | 
									.JQX - Microsoft Windows Help Related | 
									Microsoft Corporation | 
								
					
 						
								
									| 190 | 
									.JRC - PCjr Cartridge ROM Format | 
									N/A | 
								
					
 						
								
									| 191 | 
									.JRF - The Jumbot Bot Level Navigation | 
									N/A | 
								
					
 						
								
									| 192 | 
									.JRL - BioWare Aurora Game Engine Journal | 
									BioWare | 
								
					
 						
								
									| 193 | 
									.JRPRINT - JasperReports Print Format | 
									Jaspersoft | 
								
					
 						
								
									| 194 | 
									.JRS - Extensible Storage Engine (ESE) Reserve Transaction Log Format | 
									Microsoft | 
								
					
 						
								
									| 195 | 
									.JRTF - JAmes OS Rich Text Format | 
									JAmes OS | 
								
					
 						
								
									| 196 | 
									.JRXML - JasperReports Layout Format | 
									Jaspersoft | 
								
					
 						
								
									| 197 | 
									.JRZ - Sony Playstation Portable Game Data Format | 
									Sony | 
								
					
 						
								
									| 198 | 
									.JS - JavaScript Format | 
									N/A | 
								
					
 						
								
									| 199 | 
									.JSA - JRun Server Application | 
									Adobe Systems Incorporated | 
								
					
 						
								
									| 200 | 
									.JSB - JAWS Script Binary | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 201 | 
									.JSC - JavaScript Config | 
									N/A | 
								
					
 						
								
									| 202 | 
									.JSD - Jazer Financial Format | 
									Jazer Solutions | 
								
					
 						
								
									| 203 | 
									.JSDA - Jazer Financial Format | 
									Jazer Solutions | 
								
					
 						
								
									| 204 | 
									.JSE - JScript Encoded Script Format | 
									Microsoft | 
								
					
 						
								
									| 205 | 
									.JSF - Adobe Fireworks Batch Script | 
									Adobe | 
								
					
 						
								
									| 206 | 
									.JSFL - Flash JavaScript Format | 
									Adobe Systems | 
								
					
 						
								
									| 207 | 
									.JSH - JAWS Script Header Format | 
									Freedom Scientific | 
								
					
 						
								
									| 208 | 
									.JSI - JAWS Personalized Settings | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 209 | 
									.JSK - JetAudio | 
									COWON America, Inc. | 
								
					
 						
								
									| 210 | 
									.JSL - Corel PaintShop Photo Pro Shapes | 
									Corel Corporation | 
								
					
 						
								
									| 211 | 
									.JSM - JAWS Script Message | 
									Freedom Scientific, Inc. | 
								
					
 						
								
									| 212 | 
									.JSML - JSim Model | 
									The NSR Physiome Project | 
								
					
 						
								
									| 213 | 
									.JSN - Shield Now Shield | 
									JetSoft Co. | 
								
					
 						
								
									| 214 | 
									.JSO - Compressed ISO Image | 
									N/A | 
								
					
 						
								
									| 215 | 
									.JSON - JavaScript Object Notation Format | 
									N/A | 
								
					
 						
								
									| 216 | 
									.JSONP - JSON-with-padding Source Code | 
									N/A | 
								
					
 						
								
									| 217 | 
									.JSP - JAVA Server Page Format | 
									Oracle | 
								
					
 						
								
									| 218 | 
									.JSPA - Java Servlet Alias Format | 
									N/A | 
								
					
 						
								
									| 219 | 
									.JSPF - Java JSP Fragment | 
									Oracle | 
								
					
 						
								
									| 220 | 
									.JSPX - XML Java Server Page | 
									N/A | 
								
					
 						
								
									| 221 | 
									.JSR - Job Safety Report Definition | 
									N/A | 
								
					
 						
								
									| 222 | 
									.JSS - JAWS Script Source Format | 
									JACOsub | 
								
					
 						
								
									| 223 | 
									.JST - Java Server Page | 
									Oracle | 
								
					
 						
								
									| 224 | 
									.JSV - Java Structure Viewer | 
									Steffen Webe | 
								
					
 						
								
									| 225 | 
									.JSX - Adobe After Effects Script Format | 
									Adobe Systems | 
								
					
 						
								
									| 226 | 
									.JSXBIN - Binary JavaScript Format | 
									Adobe Systems | 
								
					
 						
								
									| 227 | 
									.JSXINC - ExtendScript Included Script Format | 
									Adobe Systems | 
								
					
 						
								
									| 228 | 
									.JT - JT Open CAD Format | 
									N/A | 
								
					
 						
								
									| 229 | 
									.JTB - JTB JavaCC Grammar | 
									Oracle Corporation | 
								
					
 						
								
									| 230 | 
									.JTBACKUP - Just Type Notes Backup Format | 
									Shubham Kedia | 
								
					
 						
								
									| 231 | 
									.JTD - Ichitaro Document | 
									Justsystems | 
								
					
 						
								
									| 232 | 
									.JTDC - Ichitaro Compressed Document | 
									Justsystems | 
								
					
 						
								
									| 233 | 
									.JTF - JPEG Tagged Interchange Format Image | 
									N/A | 
								
					
 						
								
									| 234 | 
									.JTG - Joint Test Action Group Configuration | 
									ARM Holdings plc | 
								
					
 						
								
									| 235 | 
									.JTK - Sun Microsystems Java Toolkit | 
									Oracle Corporation | 
								
					
 						
								
									| 236 | 
									.JTL - JMeter Test Results | 
									Apache Software Foundation | 
								
					
 						
								
									| 237 | 
									.JTP - Microsoft Windows Journal Template Format | 
									Microsoft | 
								
					
 						
								
									| 238 | 
									.JTPL - Rational Application Developer WebContent Theme Template | 
									IBM | 
								
					
 						
								
									| 239 | 
									.JTS - JVC Cyberlink AVCHD Video Format | 
									Cyberlink | 
								
					
 						
								
									| 240 | 
									.JTT - Ichitaro Document Template | 
									Justsystems | 
								
					
 						
								
									| 241 | 
									.JTV - JRiver Media Center Recorded TV Format | 
									J. River | 
								
					
 						
								
									| 242 | 
									.JTX - Jrju Text Format | 
									Microsoft | 
								
					
 						
								
									| 243 | 
									.JUDE - JUDE Project Format | 
									N/A | 
								
					
 						
								
									| 244 | 
									.JVS - Web Proxy Autodiscovery Protocol Format | 
									N/A | 
								
					
 						
								
									| 245 | 
									.JVSG - Video Surveillance Project | 
									JVSG | 
								
					
 						
								
									| 246 | 
									.JVT - JRiver Recorded Video | 
									JRiver, Inc. | 
								
					
 						
								
									| 247 | 
									.JW - Microsoft WordPad | 
									N/A | 
								
					
 						
								
									| 248 | 
									.JWC - JewelCase Maker Saved | 
									NTI Corporation | 
								
					
 						
								
									| 249 | 
									.JWG - Java | 
									Oracle Corporation | 
								
					
 						
								
									| 250 | 
									.JWL - Roxio Jewel Case Format | 
									Roxio | 
								
					
 						
								
									| 251 | 
									.JWR - LegaSuite GUI J Walk Runtime | 
									Rocket Software, Inc. | 
								
					
 						
								
									| 252 | 
									.JWS - Oracle WebLogic Server Java Web Services Format | 
									BEA Systems | 
								
					
 						
								
									| 253 | 
									.JXR - JPEG XR Image | 
									Microsoft | 
								
					
 						
								
									| 254 | 
									.JZ - JamesZhu Internet Browser Database | 
									JamesZhu Inc. |