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Sorted alphabetically: J

#File extensionThe full name of the file
 
1 J File Extension Java Source Format
2 J2B File Extension Jazz Jackrabbit 2 Music
3 J2C File Extension JPEG 2000 Code Stream
4 J2D File Extension Jazz Jackrabbit Data
5 J2E File Extension Jazz Jackrabbit 2 Episode
6 J2I File Extension Jazz 2 Internet Link Format
7 J2K File Extension JPEG 2000 Image
8 J2L File Extension Jazz Jackrabbit 2 Level Format
9 J2SI File Extension Jazz Jackrabbit 2 Internet Server Link
10 J2T File Extension Jazz Jackrabbit 2 Tile Set Format
11 J2W File Extension ArcExplorer World
12 J3B File Extension Digital Juice Data Format
13 J3D File Extension Atari Jaguar 3D Object Data Format
14 J3O File Extension JMonkeyEngine 3D Scene
15 J6I File Extension Ricoh Digital Camera Image
16 JA File Extension Jet Archive
17 JAAS File Extension Java Authentication And Authorization Service Settings Format
18 JAB File Extension JAABA Project Format
19 JAC File Extension JaStaCry Encrypted Format
20 JACL File Extension IBM WebSphere Server Script
21 JAD File Extension Java Application Descriptor Format
22 JADD File Extension JastAdd Imperative Aspect Format
23 JADE File Extension Jade Programming Language Source Code
24 JAG File Extension Jagex Data Format
25 JAI File Extension Jaikoz Settings
26 JAK File Extension AHEAD Tool Suite Data Format
27 JAM File Extension Leisure Suit Larry Magna Cum Laude Archive Format
28 JAN File Extension Janome Digitizer Embroidery Object
29 JAP File Extension Japanese Nintendo 64 Game ROM
30 JAR File Extension Java Archive Format
31 JARPACK File Extension Pack200 Packed Jar Format
32 JARDESC File Extension Eclipse JAR Settings
33 JARVIS File Extension Jarvis Subscriber Format
34 JAR_NEW File Extension WOW! Data Format
35 JAS File Extension Corel PaintShop Photo Pro Bitmap Graphics Format
36 JASPER File Extension JasperReports Data Format
37 JAV File Extension Java Source Format
38 JAVA File Extension Java Source Code Format
39 JAVAJET File Extension Eclipse JET Java Template
40 JAX File Extension Java Executable JAR
41 JB2 File Extension JBIG2 Image
42 JBACKUP File Extension The Journal Backup Archive Format
43 JBB File Extension Jbead Data Format
44 JBC File Extension Jam STAPL Byte-Code Format
45 JBF File Extension Paint Shop Pro Browser Cache Format
46 JBG File Extension Image JBIG 1-bit Raster
47 JBI File Extension Motoman Robot Job Format
48 JBIG File Extension Joint Bi-level Image Group Format
49 JBIG2 File Extension JBIG2
50 JBK File Extension Juno Backup Format
51 JBL File Extension Doom Scene Add-on
52 JBMP File Extension JAmes OS Bitmap Image
53 JBR File Extension Paint Shop Pro Brushes Format
54 JBT File Extension JAWS
55 JC File Extension FlashGet Partial Download
56 JC! File Extension FlashGet Incomplete Download
57 JCC File Extension Code Crusader Project Data
58 JCCFG3 File Extension FlashGet Incomplete Download
59 JCD File Extension FlashGet Saved
60 JCF File Extension JAWS Configuration
61 JCLIC File Extension JClic Project Format
62 JCM File Extension Java Commerce Message
63 JCN File Extension JobClock TimeSummit Data Format
64 JCP File Extension Jesusonic Preset Format
65 JCRYPT File Extension JCRYPT Format
66 JCS File Extension Java Control Source
67 JCSK File Extension JetCast Skin
68 JCT File Extension JCT
69 JCX File Extension JetAudio JetChat Data Format
70 JCZ File Extension Liquid Motion Animation
71 JD File Extension JDownloader Data Format
72 JDB File Extension Symantec Endpoint Protection Update Format
73 JDC File Extension JDownloader Links Format
74 JDF File Extension Adobe Acrobat Job Definition Format
75 JDM File Extension Jade Diagram Format
76 JDP File Extension BlackBerry JDE
77 JDS File Extension JDataStore Database Format
78 JDW File Extension BlackBerry JDE
79 JDX File Extension JSpell Dictionary
80 JEB File Extension PENSIM Output
81 JED File Extension Xilinx JEDEC Programming Format
82 JEF File Extension Janome Embroidery Format
83 JEFF File Extension Java Explanation Facility Framework Data Format
84 JEQ File Extension JetAudio EQ Preset Format
85 JETINC File Extension Eclipse IDE Template Fragment
86 JEWELQUEST2SAVEDGAME File Extension Jewel Quest Saved Game Format
87 JEWELQUESTSAVEDGAME File Extension Jewel Quest Saved Game
88 JEWELQUESTSOLITAIRE2SAVEDGAME File Extension Jewel Quest Saved Game Format
89 JEX File Extension JExpress Project Format
90 JFD File Extension JAWS Synopsis
91 JFF File Extension JAWS Ini
92 JFFS2 File Extension Journalling Flash Format System 2 Disk Image
93 JFI File Extension JPEG Format Interchange Image
94 JFIF File Extension JPEG Format Interchange Format
95 JFL File Extension SigmaPlot
96 JFM File Extension JetForm Filler Form Format
97 JFR File Extension WJVN Fragment
98 JFS File Extension Linux/Unix Journaling System
99 JFX File Extension J2 Fax
100 JG4 File Extension BigJig Jigsaw Puzzle
101 JGCSCS File Extension EditPad Custom Syntax Coloring Scheme Format
102 JGD File Extension Corel PaintShop Photo Pro Gradients
103 JGF File Extension JAWS Ini
104 JGP File Extension QWS3270 PLUS Session Parameter
105 JGS File Extension QWS3270 PLUS Script
106 JGW File Extension JPEG World Format
107 JGWX File Extension Blender GIS World Data Format
108 JGZ File Extension Gzipped Javascript Format
109 JHD File Extension Jagannatha Hora Document Format
110 JHM File Extension Java Help Mapping
111 JHTML File Extension Java HTML Web Page
112 JIA File Extension Digital Photo Navigator Album
113 JIB File Extension Sam2p JIB Data Format
114 JIC File Extension Java Icon Format
115 JIF File Extension JPEG Image Format
116 JIFF File Extension JPEG Image Format Format
117 JIG File Extension GameHouse Puzzle Jigsaw Game
118 JIGSAW File Extension Jigsaw Explorer Save Format
119 JIGZ File Extension Jiggsaw Puzzle
120 JIP File Extension JIP Analysis Toolkit Image Format
121 JIS File Extension Japanese Industry Standard Text
122 JISP File Extension Tkabber Emoticon Set
123 JIT File Extension Aika Online Texture
124 JJ File Extension Doodle C64 Compressed Image Format
125 JJF File Extension Flash Jester Jugglor
126 JJJS File Extension Claris Organizer Format
127 JKB File Extension Quake 3 Arena Bot AI
128 JKL File Extension Jedi Knight
129 JKM File Extension JAWS Key Map Format
130 JKS File Extension Jedi Knight Save
131 JL File Extension Julia Source Code Format
132 JLB File Extension PAC Mate BX Keyboard Driver
133 JLC File Extension Byte Compiled Lisp-based Script
134 JLM File Extension IBM ILOG JViews Maps License Manager Keys Data Format
135 JLQM File Extension LG QuickMemo Note Format
136 JLR File Extension JetAudio Lyric Data Format
137 JLS File Extension JAWS
138 JMA File Extension NSRT Compressed Game
139 JMAP File Extension CodeWarrior Data Format
140 JMD File Extension Corel PaintShop Pro Image Map Settings
141 JMF File Extension Java Media Framework
142 JMK File Extension JX Makefile Format
143 JML File Extension Java Modeling Language Specification
144 JMP File Extension JMP Data Format
145 JMS File Extension Voxtron TeleButler Interactive Voice Response Call Flow
146 JMV File Extension Jnes Movie Format
147 JMX File Extension Apache JMeter
148 JNB File Extension SigmaPlot Workbook
149 JNG File Extension JPEG Network Graphic
150 JNILIB File Extension JNI Library
151 JNK File Extension Junk Temporary Data Format
152 JNL File Extension Ingres Journal
153 JNLP File Extension Java Web Start Format
154 JNT File Extension Windows Journal Format
155 JNX File Extension Garmin Raster Map
156 JO File Extension Jo Audio Format
157 JO-7Z File Extension Jo Audio Format
158 JOB File Extension Windows Task Scheduler Job Format
159 JOBOPTIONS File Extension Adobe Joboptions Format
160 JOBS File Extension VirtualDub Job
161 JOD File Extension Microsoft Jet OLEDB.4.0
162 JOE File Extension JOE Document
163 JOINED File Extension HJ-Split Data Format
164 JOML File Extension JOOB Object Modelling Language
165 JOMPROJ File Extension Microsoft Visual Studio JOOB Object Model Project
166 JOR File Extension Microsoft SQL Server Journal
167 JOT File Extension Jot+ Notes Note Data
168 JOURNAL File Extension Equitrac Cache Format
169 JOURNALDOC File Extension SolidWorks Design Journal Template
170 JOURNAL_INFO_BLOCK File Extension Apple Mac OS Xsystem
171 JOY File Extension CryENGINE Facial Editor Joystick Format
172 JP1 File Extension Japanese (Romaji) Text Format
173 JP2 File Extension JPEG 2000 Core Image Format
174 JP3 File Extension Electric Quilt
175 JP4 File Extension Electric Quilt
176 JP5 File Extension Electric Quilt
177 JPA File Extension Joomla Installation Backup
178 JPAGE File Extension Eclipse Java Scrapbook Page
179 JPB File Extension Publish Manager Report
180 JPC File Extension JPEG 2000 Code Stream Format
181 JPD File Extension Java Process Definition
182 JPE File Extension JPEG Image
183 JPEG File Extension JPEG Image
184 JPEGENX File Extension Egis Encrypted JPEG
185 JPEG_160X120 File Extension 160 X 120 Pixels JPEG Image
186 JPEG_170X220 File Extension 170 X 220 Pixels JPEG Image
187 JPF File Extension JPEG 2000 Image
188 JPG File Extension JPEG Image
189 JPG2 File Extension JPEG 2000 Image
190 JPGE File Extension Mistyped JPEG Bitmap Image Format
191 JPGENX File Extension Egis Encrypted JPG
192 JPGW File Extension JPEG World Format
193 JPGX File Extension Egis Encrypted JPG Bitmap Image
194 JPG_108X192 File Extension Android Picture
195 JPG_128X128 File Extension Android Picture
196 JPG_128X160 File Extension Android Picture
197 JPG_128X96 File Extension Android Picture
198 JPG_160X120 File Extension Android Picture
199 JPG_160X128 File Extension Android Picture
200 JPG_170X128 File Extension Android Picture
201 JPG_170X220 File Extension Android Picture
202 JPG_220X176 File Extension Android Picture
203 JPG_240X320 File Extension Android Picture
204 JPG_320X240 File Extension Android Picture
205 JPG_320X320 File Extension Android Picture
206 JPG_480X320 File Extension Android Picture
207 JPG_512X512 File Extension Android Picture
208 JPG_56X42 File Extension Android Picture
209 JPG_ENCRYPTED File Extension Google Android Encrypted JPEG Picture Image Format
210 JPG_T File Extension JPEG Image
211 JPG_THUMB File Extension JPG Thumbnail Image Format
212 JPH File Extension JProbe Memory Snapshot
213 JPI File Extension Jupiter Encrypted XML
214 JPK File Extension JPK Instruments Format Format Format
215 JPL File Extension JProbe Settings
216 JPM File Extension JPEG 2000 Multi-layer Image Format (ISO 15444-6)
217 JPN File Extension Windows Japanese Noise-Word List Format
218 JPP File Extension Jigsaw Puzzle Player Puzzle Definition
219 JPQ File Extension JPQ (Jared Package) Library Archive Format
220 JPR File Extension JBuilder Project
221 JPS File Extension Stereo JPEG Image
222 JPT File Extension Jprobe Threadalyzer Memory Snapshot
223 JPW File Extension World Format For JPEG
224 JPX File Extension JPEG 2000 Image Format
225 JPZ File Extension Puzzle Solver Puzzle
226 JQ3SAVEGAME File Extension Jewel Quest III Saved Game
227 JQX File Extension Microsoft Windows Help Related
228 JRAG File Extension JastAdd Declarative Aspect Format
229 JRC File Extension PCjr Cartridge ROM Format
230 JRF File Extension The Jumbot Bot Level Navigation
231 JRL File Extension BioWare Aurora Game Engine Journal
232 JRMIME File Extension HDTracks Downloader Data Format
233 JRP File Extension Electric Quilt Document Format
234 JRPRINT File Extension JasperReports Print Format
235 JRS File Extension Exchange Reserve Transaction Log Format
236 JRTF File Extension JAmes OS Rich Text Format
237 JRXML File Extension JasperReports Layout Format
238 JRZ File Extension PSP Game Data Format
239 JS File Extension JavaScript Format
240 JSA File Extension JRun Server Application
241 JSB File Extension JAWS Script Binary
242 JSC File Extension JavaScript Config
243 JSCRIPT File Extension Microsoft JScript Source Code Format
244 JSCSRC File Extension Visual Studio Code Data Format
245 JSD File Extension Jazer Data Format
246 JSDA File Extension Jazer Data Format
247 JSDTSCOPE File Extension Eclipse JavaScript Development Data Format
248 JSE File Extension JScript Encoded Format
249 JSEE File Extension EmEditor Data Format
250 JSF File Extension Adobe Fireworks Batch Script
251 JSFL File Extension Flash JavaScript Format
252 JSH File Extension JAWS Script Header Format
253 JSHINTRC File Extension JSHint Data Format
254 JSHTM File Extension Visual Studio Code Data Format
255 JSI File Extension JAWS Personalized Settings
256 JSK File Extension JetAudio
257 JSL File Extension Corel PaintShop Photo Pro Shapes
258 JSM File Extension JAWS Script Message
259 JSML File Extension JSim Model
260 JSN File Extension Shield Now Shield
261 JSO File Extension Compressed ISO Image
262 JSON File Extension JavaScript Object Notation Format
263 JSONLD File Extension Microsoft Visual Studio Data Format
264 JSONP File Extension JSON-with-padding Source Code
265 JSP File Extension Java Server Page
266 JSPA File Extension Java Servlet Alias
267 JSPF File Extension Java Server Page Fragment
268 JSPROJ File Extension Microsoft Visual Studio Data Format
269 JSPX File Extension XML Java Server Page
270 JSR File Extension Job Safety Report Definition
271 JSS File Extension JACOsub Subtitle Format
272 JST File Extension JavaServer Page Document
273 JSV File Extension Java Structure Viewer
274 JSX File Extension ExtendScript Script Format
275 JSXBIN File Extension Binary ExtendScript Script Format
276 JSXINC File Extension ExtendScript Included Script Format
277 JT File Extension JT Open CAD Format
278 JTB File Extension JTB JavaCC Grammar
279 JTBACKUP File Extension Just Type Backup Format
280 JTD File Extension Ichitaro Document
281 JTDC File Extension Ichitaro Compressed Document
282 JTF File Extension JPEG Tagged Interchange Format
283 JTG File Extension Joint Test Action Group Configuration
284 JTK File Extension Sun Microsystems Java Toolkit
285 JTL File Extension JMeter Test Results
286 JTP File Extension Windows Journal Template
287 JTPL File Extension Rational Application Developer WebContent Theme Template
288 JTS File Extension Cyberlink AVCHD Video Format
289 JTT File Extension Ichitaro Document Template
290 JTV File Extension J. River TV Format
291 JTX File Extension ESE Transaction Log
292 JU File Extension JU Source Code Format
293 JUDE File Extension JUDE Project Format
294 JVD File Extension JavaView Camera And Display Settings Format
295 JVDB File Extension The Journal Volume Database Format
296 JVR File Extension JavaView Configuration Data Format
297 JVS File Extension JavaScript Proxy Autoconfig Format
298 JVSG File Extension Video Surveillance Project
299 JVSK File Extension JetVideo Skin Format
300 JVT File Extension JRiver Recorded Video
301 JVXL File Extension Jmol Voxel Data Format
302 JW File Extension Microsoft WordPad
303 JWC File Extension JewelCase Maker Saved
304 JWG File Extension Java
305 JWL File Extension Roxio Jewel Case Format
306 JWR File Extension LegaSuite GUI J Walk Runtime
307 JWS File Extension Java Web Services Format
308 JXR File Extension JPEG XR Image
309 JZ File Extension JamesZhu Internet Browser Database
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BKF

Windows Backup Utility Format

BKF file format is used for backup copies created with Windows Backup Tool included in MS Windows systems (from NT to XP Pro). BKF files store a ca...

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