| Extension |
Information |
| J |
JPEG / JFIF Image |
| J |
JAR Compressed File |
| J |
Java Source Code (Sun) |
| J1 |
EDIT Compiler JEDEC Boundary File |
| J2A |
Jazz Jackrabbit 2 Animation Library (Epic MegaGames Inc.) |
| J2B |
Jazz Jackrabbit 2 Music File (Epic MegaGames, Inc.) |
| J2D |
Jazz Jackrabbit Data File (Epic MegaGames, Inc.) |
| J2E |
Jazz Jackrabbit 2 Episode File (Epic MegaGames, Inc.) |
| J2G |
J2 Fax File |
| J2H |
Jazz Jackrabbit 2 High Scores (Epic MegaGames, Inc.) |
| J2I |
Jazz Jackrabbit 2 Internet Server Link (Epic MegaGames,
Inc.) |
| J2K |
JPEG-2000 JP2 File |
| J2L |
Jaxx Creation Station Level File (Epic MegaGames Inc.) |
| J2M |
Jazz Jackrabbit 2 Recorded Macro (Epic MegaGames, Inc.) |
| J2S |
Jazz Jackrabbit 2 Language Data (Epic MegaGames, Inc.) |
| J2T |
Jazz Jackrabbit 2 Tile Set (Epic MegaGames, Inc.) |
| J2V |
Jazz Jackrabbit 2 Cinematic File (Epic MegaGames, Inc.) |
| J62 |
Ricoh Digital Camera File |
| J6I |
Ricoh Digital Camera File (Ricoh Co., Ltd.) |
| J92 |
Javelin Configuration File (Minisoft Inc.) |
| JA |
IBM Tools Updater File |
| JACKET |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JACKSUM |
Jacksum Fingerprint (Dipl.-Inf. (FH) Johann N. Löfflmann) |
| JAD |
Java Application Descriptor File (Sun Microsystems, Inc.) |
| JAG |
Jaguar Server File |
| JAIL |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAM |
Image Microprose |
| JAM |
FTN Software Jam Messagebase |
| JAM |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAM |
E-mail |
| JAM |
JamTracker Music Module |
| JAM |
Joaquim-Andrew-Mats Message Base Proposal |
| JAM2 |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAMMIX |
Jammix Enhacer Music Transform File (Danilics Tibor) |
| JAN93 |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAP |
Fifa World Cup Game Data fe Art Legalscr File |
| JAP |
JAlbum Project File (Datadosen) |
| JAP |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAPAN |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAR |
JARCS Compressed Archive (JPMdL Archival System) |
| JAR |
JAR Archive (ARJ Software, Inc.) |
| JAR |
Java Archive (Sun Microsystems, Inc.) |
| JAR |
Java Applet (Sun) |
| JARRE |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JAS |
Paint Shop Pro Compressed Graphic (Corel Corporation) |
| JASC |
JAS Compressed Graphic |
| JAU |
Jauge |
| JAV |
Java Source Code (Sun) |
| JAVA |
Java Source Code (Sun) |
| JAW |
IchiTaro Web Japanese Extended WordProcessor (Justsystem
Corporation) |
| JB2 |
JBIG2 Bitmap Graphic |
| JBC |
BestCrypt Container (Jetico, Inc.) |
| JBC |
Jam Byte-Codec File |
| JBD |
SigmaScan Data File |
| JBF |
Paint Shop Pro Browser Cache (Corel Corporation) |
| JBG |
JBIG File |
| JBIG |
JBIG File |
| JBIG2 |
JBIG2 Bitmap Graphic |
| JBK |
Jot + Notes Backup File for Older Version (King Stairs
Software) |
| JBK |
Juno Backup File |
| JBL |
Doom Scene Add-in (Id Software, Inc.) |
| JBP |
DJ Jukebox Project |
| JBR |
Paint Shop Pro Brush (Corel Corporation) |
| JBS |
DesignArt (Anagraph) |
| JBX |
Project Scheduler File |
| JC |
FlashGet Intermediate Download |
| JC |
Watcom Source File |
| JC! |
FlashGet (Amaze Software) |
| JCAMP |
Misc |
| JCB |
CB-JCBrooke Song/Module |
| JCC |
Japan Crossword Dmitry Torshin Format File (EliteWare) |
| JCC |
Code Crusader Project Data (New Planet Software) |
| JCD |
FlashGet Download Database File |
| JCE |
JWPce (Glenn Rosenthal) |
| JCF |
JAWS for Windows Configuration File (Freedom Scientific) |
| JCK |
Liquid Motion JACK Scene Description |
| JCL |
Job Control Language IBM |
| JCM |
Java Commerce Message Commerce Message (Wallet) (Sun) |
| JCP |
Jesusonic Preset (Cockos Incorporated) |
| JCS |
Latest Bruker WinSpecEdit v3.08 JCAMP |
| JCS |
Flashget Script HTML Table |
| JCV |
Baseball/Golf Analyzer (JC Video Systems) |
| JD |
Jigsaw Terminal File |
| JDA |
Winphone Fax Send Journal |
| JDB |
Winphone Fax Receive Journal |
| JDB |
Siren Jukebox |
| JDE |
Cariverona |
| JDF |
Turok 2 Game File |
| JDF |
JAWS for Windows Voice Synth File (Freedom Scientific) |
| JDF |
Job Definition Format Job File |
| JDT |
Capture Classic Filler (Accelio) |
| JDX |
J Database Exchange (JDX) O/R Mapping Specification
(Software Tree, Inc.) |
| JDX |
EDICT Index |
| JDX |
JSpell UNICODE Dictionary (The Solution Cafe) |
| JDX |
JCAMP Chemical Spectroscopic Data Exchange Format (MDL
Information Systems, Inc.) |
| JED |
JEDEC Programming Specification |
| JED |
Xilinx Integrated Software Environment Device
Configuration Information (Xilinx, Inc.) |
| JEF |
Janome NH10000 Sewing Machine Stitch File (Janome America,
Inc.) |
| JEQ |
Jet Audio Saved Equalizer Setting (JetAudio, Inc.) |
| JET |
Hybrid JetFax Fax |
| JET |
Jetpack User-created Level Map |
| JFD |
JAWS for Windows (Freedom Scientific) |
| JFD |
FormWare Job |
| JFF |
JAWS for Windows (Freedom Scientific) |
| JFF |
JPEG Image |
| JFG |
jEEPers User Specific Information |
| JFI |
JPEG/JIFF Image |
| JFIF |
JPEG/JIFF Image |
| JFM |
Capture Classic (Accelio) |
| JFX |
J2 Fax File |
| JG6 |
BigJig Jigsaw |
| JGCSCS |
EditPad Pro Custom Coloring Scheme (JGsoft - Just Great
Software) |
| JGD |
Paint Shop Pro Gradient (Corel Corporation) |
| JGF |
JAWS for Windows Configuration File (Freedom Scientific) |
| JGF |
Jetcam Geometry File (JETCAM International, Ltd.) |
| JGL |
QWS3270 PLUS Session Layout File (Jolly Giant Software
Inc.) |
| JGP |
QWS3270 PLUS Session Parameter File (Jolly Giant Software
Inc.) |
| JGS |
QWS3270 PLUS Script (Jolly Giant Software Inc.) |
| JHTM |
Dynamo Server Page |
| JHTML |
Dynamo Server Page |
| JIF |
JPEG/JIFF Image |
| JIF |
Jeff's Image Format Bitmap |
| JIG |
Living Scenes Jigsaw Puzzles (Carolina Road Software
L.L.C.) |
| JIG |
Jigsaw Game (GameHouse, Inc., a division of RealNetworks,
Inc.) |
| JIGDO |
Jigsaw Download Download Instruction File (Richard
Atterer) |
| JIM |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JINKS |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JIS |
Japanese Industrial Standard Text File |
| JJ |
C64 Doodle Compressed File |
| JJ |
JavaCC File |
| JJC |
Canvas Compressed Audio File |
| JJF |
Jester Jugglor File |
| JKL |
Jedi Knight |
| JKM |
JAWS for Windows Configuration File (Freedom Scientific) |
| JKS |
Jedi Knight Backup |
| JL |
Sawfish Lisp-based Script |
| JLA |
VisualPro BMP Image |
| JLAB |
JLab Program Source Code (Linova) |
| JLC |
Sawfish Byte Compiled Lisp-based Script |
| JLF |
JetLinks Bookmark Managment |
| JLP |
JLIP Video Capture (Video Producer) Index Format Display
(JVC) |
| JLS |
JAWS for Windows (Freedom Scientific) |
| JLS |
JPEG-LS File |
| JMAN |
Illum Source Irohaserver File |
| JMD |
Paint Shop Pro Image Map Settings (Corel Corporation) |
| JMF |
Java Multimedia File (Sun) |
| JMG |
16 Bit Adaptive RLE Compressed Bitmap |
| JMH |
JPEG File Interchange Format |
| JMK |
Code Crusader Build Script (New Planet Software) |
| JMM |
Digital Camera Video Clip (JVC) |
| JMP |
SAS JMP Discovery Chart-to-Statistics File (SAS Institute
Inc.) |
| JMS |
SpamProx Blocking List (Dewqs' Tribes) |
| JMS |
Voxtron TeleButler Graphical Voice Response Call Flow |
| JMS |
UltraForce Music Format |
| JMX |
JMeter File |
| JN1 |
Epic MegaGames Jill of the Jungle Data File |
| JNB |
SigmaPlot Workbook File (SYSTAT Software Inc.) |
| JNC |
Communication Log File |
| JNG |
JPEG Network Graphic Bitmap |
| JNGL |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JNK |
Junk |
| JNL |
Ingres Journal File (Computer Associates International,
Inc.) |
| JNL |
WINDEV Log File (PC SOFT) |
| JNL |
Journal Macro Data File (Chosen Software) |
| JNLP |
Java Web Start (Sun Microsystems, Inc.) |
| JNT |
Windows XP Tablet PC Edition Journal (Microsoft
Corporation) |
| JOB |
Systems Management Server (SMS) Job File (Microsoft
Corporation) |
| JOB |
File Invesigator Script Commands |
| JOB |
QuestVision Vector Graphics File |
| JOB |
Windows Task Scheduler Task Object (Microsoft) |
| JOB |
Tripod Data Systmes Survey Pro Job |
| JOB |
Job File |
| JOB |
AI Research |
| JOB |
MetaCAM Nest Job (Metamation, Inc.) |
| JOB |
BETA 44 Job File |
| JOB |
MicroSim PCBoard External ASCII Job File |
| JOBOPTIONS |
Acrobat Job Options File (Adobe Systems Inc.) |
| JOBS |
VirtualDub Job Control File (Avery Lee) |
| JOC |
Context4 DOS Word Processor File |
| JOD |
MS.Jet.OLEDB.4.0 Related File |
| JOI |
Xboard Join Conferences File |
| JOKE |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JONES |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JOR |
Gupta SQLWindows Journal |
| JOR |
SQL Server Journal File (Microsoft) |
| JOT |
Jot + Notes Note Data File (King Stairs Software) |
| JOT |
WinJottr Desktop Note |
| JOT |
JDesignerPro File |
| JOU |
VAX Edt Editor Journal File |
| JOURNAL |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JOY |
Trackjoy GUS Tracker Module |
| JOY |
Joystick Calibration File |
| JP2 |
JPEG-2000 JP2 File |
| JP3 |
Electric Quilt File |
| JP4 |
Electric Quilt File |
| JP5 |
Electric Quilt File |
| JPA |
JoomlaPack Joomla Installation Backup (fronzenFX) |
| JPC |
Jprobe Coverage Memory Snapshot (Quest Software Inc.) |
| JPC |
Japan Picture Format |
| JPC |
JPEG-2000 Code Stream Bitmap |
| JPE |
JPEG/JIFF Image |
| JPEG |
JPEG/JIFF Image |
| JPEGENX |
egis Encrypted JPEG File (HiTRUST Inc.) |
| JPF |
Biz Plan Pro Business Plan Contents (JIAN Tools For Sales,
Inc.) |
| JPG |
CompactDRAW e-JPG Graphic (MediaChance) |
| JPG |
JPEG/JIFF Image |
| JPGENX |
egis Encrypted JPG File (HiTRUST Inc.) |
| JPG_T |
JPG Image File |
| JPH |
Jprobe Memory Debugger Memory Snapshot (Quest Software
Inc.) |
| JPI |
Jupiter Document (Elfin Sp. z o.o.) |
| JPL |
Siren Jukebox |
| JPL |
Jprobe Settings File (Quest Software Inc.) |
| JPM |
LuraDocument.jpm Compressed PDF File (Algo Vision LuraTech
GmbH) |
| JPN |
Photomodeler Lite File |
| JPOW |
JPowered Java Bar Charts |
| JPP |
Jprobe Profiler Memory Snapshot (Quest Software Inc.) |
| JPP |
Jigsaw Puzzle Player Puzzle Definition (B&P Games
B.V.) |
| JPR |
Oracle JDeveloper Model JProject |
| JPR |
Javasockets File |
| JPS |
Stereo Image |
| JPS |
Print Studio Graphic (Jolly, Inc.) |
| JPS |
Jigsaw Puzzle Player Puzzle Completion Status (B&P
Games B.V.) |
| JPT |
Jprobe Threadalyzer Memory Snapshot (Quest Software Inc.) |
| JPT |
Print Studio Template (Jolly, Inc.) |
| JPX |
JBuilder Project File (Borland Software Corporation) |
| JPX |
JPEG-2000 JP2 File |
| JQX |
Windows Help Related File (Microsoft) |
| JR |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JR2 |
FishSim Add-on (J.C.Spooner) |
| JRC |
Jrchive Compressed Archive |
| JRF |
winIDEA Workspace (Programming Project File) (iSYSTEM AG) |
| JRF |
The Jumbot Bot Level Navigation File |
| JRL |
BioWare Aurora Engine Journal (BioWare Corp.) |
| JRL |
Top Secret Crypto Gold Top Secret Journal File (TAN$TAAFL
Software Company) |
| JRP |
Electric Quilt File |
| JS |
Mozilla (Netscape) Settings (Mozilla.org) |
| JS |
JetScript Output File |
| JS |
JavaScript Source Code |
| JS |
JACOsub Script |
| JSB |
JAWS for Windows Script Binary File (Freedom Scientific) |
| JSB |
JavaScript Bean (JSB) File |
| JSCRIPT |
GoLive JavaScript (Adobe) |
| JSD |
Paint Shop Pro Image Slice Settings (Corel Corporation) |
| JSD |
Join-Split File |
| JSD |
JAWS for Windows Script Documentation File (Freedom
Scientific) |
| JSD |
eFAX Jet Suite Document (j2 Global Communications, Inc.) |
| JSDB |
JumpStart Database (Jumpstart-it.com) |
| JSE |
Fichier Encoded Javascript |
| JSE |
JScript Encoded Script File |
| JSF |
Jahshaka Scene File (The Jahshaka Project) |
| JSF |
Macromedia Fireworks Batch Script |
| JSH |
JAWS for Windows Script Header File (Freedom Scientific) |
| JSL |
Paint Shop Pro Shapes File (Corel Corporation) |
| JSL |
Visual J# Code (Microsoft Corporation) |
| JSM |
JAWS for Windows Script Message File (Freedom Scientific) |
| JSM |
Jig ShapeMap (Steamboat Software) |
| JSM |
Gray Design Associates Jigsaws Galore Jigsaw File |
| JSM |
JugWin Jigsaw |
| JSP |
Java Server Page (Sun) |
| JSP10 |
Java Server Page (Sun) |
| JSPA |
WebWork Framework JSP Action |
| JSPF |
JSP Page Fragment (Sun) |
| JSS |
JugWin Jigsaw |
| JSS |
JSheet |
| JSS |
JAWS for Windows Script Source File (Freedom Scientific) |
| JSS |
Gray Design Associates Jigsaws Galore Saved Game Jigsaw
File |
| JST |
Code Crusader Symbol Database (New Planet Software) |
| JST |
Jnes Saved Game State File (JaboSoft) |
| JSV |
VXML JavaServer Page |
| JSV |
HyperRail 3D Coaster Design Construction File |
| JSV |
Java Structure Viewer |
| JSV |
Japanese Flash Card File |
| JSW |
WML JavaServer Page |
| JT |
JT Fax |
| JTD |
Ichitaro Document (Justsystem Corporation) |
| JTF |
Hayes JT Fax |
| JTF |
JPEG Tagged Interchange Format Image |
| JTIF |
JPEG Tagged Interchange Format Image |
| JTK |
Java ToolKit File (Sun) |
| JTL |
JTool Data File (Behavioral Health Quality) |
| JTP |
JetForm File |
| JTP |
Windows XP Tablet PC Edition Journal (Microsoft) |
| JTR |
Jelbert GeoTagger Location Database (Jelbert Consulting) |
| JUDI |
JudoScript Source Code File (JudoScript.COM) |
| JUDO |
JudoScript Source Code File (JudoScript.COM) |
| JUL |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JUL |
Inteliweb Program Registration and Validation (InVision
Marketing, Inc. & Inteliweb.net) |
| JUMP |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JUMP1 |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JUN14 |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JUP |
Code Crusader User-Specific Project Preferences (New
Planet Software) |
| JUST |
Unknown Apple II File (found on Golden Orchard Apple II CD
Rom) |
| JUT |
Jutvision Scene |
| JVC |
Digital Camera File |
| JVS |
Jpeg Video Sequencer Sequenced JPEG Images |
| JW |
Q & A Write for Windows 3.0 |
| JW |
Justwrite Text |
| JW |
Legacy Version 1.1 |
| JW |
MS Wordpad, Works for windows v3.0 & 4.0 |
| JW |
Jigsaw Terminal File |
| JWC |
JewelCase Maker Saved File (NewTech Infosystems Inc.) |
| JWL |
Jewel Case Creator CD Disc Case |
| JWL |
Easy CD Creator's CD Label (Sonic Solutions) |
| JWL |
Justwrite Text File Library |
| JWP |
JWP Document |
| JWP |
Easy CD Creator Label File (Sonic Solutions) |
| JWR |
LegaSuite GUI J Walk Runtime File (Seagull Software
Systems, Inc.) |
| JWS |
WebLogic Workshop Java Web Services (BEA Systems, Inc.) |
| JXDM |
Multi-Channel Server (MCS) Markup Editor Java Server Page
with XDIME Markup/Java Code (Volantis Systems Ltd.) |
| JXX |
C++ Header File |
| JZZ |
Jazz Spreadsheet |
