The file extension list you requested is shown on this page. It loads as a table so please give it a moment as some of the lists are quite long. These lists contain basic information: the extension, the name of the program it works with, the specific function of the file, and the company that makes the program. Not all extensions have all of the data. Click on the extension of interest to see the detail page for that extension. Total extensions in this particular list: 343.
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| Extension |
Information |
| K |
IRIS Editor Format File (eurobraille) |
| K |
Desktop Color Separation Specification Black Layer |
| K |
NRJ Live File |
| K00 |
Tonline DB File |
| K01 |
Tonline DB File |
| K01 |
Clarion DOS Database Key File (SoftVelocity) |
| K02 |
Clarion DOS Database Key File (SoftVelocity) |
| K02 |
Tonline DB File |
| K03 |
Clarion DOS Database Key File (SoftVelocity) |
| K03 |
Tonline DB File |
| K04 |
Clarion DOS Database Key File (SoftVelocity) |
| K05 |
Clarion DOS Database Key File (SoftVelocity) |
| K06 |
Clarion DOS Database Key File (SoftVelocity) |
| K07 |
Clarion DOS Database Key File (SoftVelocity) |
| K08 |
Clarion DOS Database Key File (SoftVelocity) |
| K09 |
Clarion DOS Database Key File (SoftVelocity) |
| K1S |
Wave Glib19 File |
| K2 |
Kar2ouche Storyboard File |
| K25 |
Kurzweil 2500 Sample (Kurzweil Music Systems, Inc.) |
| K25 |
Kodak DC25 Digital Camera File |
| K3D |
3DS Macro Language Description |
| K4E |
Karaoke 4 Everyone.com Player/Editor File (Karaoke 4 Everyone.com) |
| K7 |
DCMO6 Emulator Tape Image |
| KA |
Karma Asset |
| KAF |
Resurrection Matchmaker! MapPack (Wildman-Productions) |
| KAL |
Sfkal Calender Kal_40 File |
| KAL |
KManager Calibration Data File (Hondata, Inc.) |
| KAN |
Kwalitan Annotation (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KAP |
MapInfo Sea Chart (MapInfo Corporation) |
| KAR |
Keep-It Archive (Remember International Associates Ltd) |
| KAR |
Karaoke MIDI File |
| KAR |
FOX+ 2.0 |
| KAT |
Katorzer Music Composition |
| KAU |
KeyAudit Software Audit |
| KAW |
Karma Workspace |
| KB |
Knowledge Pro Source Code |
| KB |
C++ Keyboard Script (Borland Software Corporation) |
| KBD |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KBD |
Keyboard Script File Layout (Microsoft Corporation) |
| KBD |
Dungeon Lords Game Data (Typhoon Games (HK) Ltd.) |
| KBF |
MyInfo Documnet/Outline (Milenix Software) |
| KBI |
Keirsey-Bates Temperament Sorter Index |
| KBM |
Reflection Keyboard Script File Layout |
| KBM |
Scala Keyboard Mapping |
| KBN |
TeamSpeak Keybinding File (TeamSpeak Systems) |
| KBP |
Keirsey-Bates Temperament Sorter Profile |
| KBR |
Keirsey-Bates Temperament Sorter Data |
| KBR |
The Drums Pro file |
| KBS |
ACE Studio Model Builder |
| KBX |
AVG Keyboard Shortcut Definitions (AVG Technologies) |
| KBX |
KBOX Heroes Factory File (KBOX Team) |
| KCC |
KeywordConvert Keyword/Phrase Combine List (FormatBlue Software) |
| KCF |
KiSS Configuration File |
| KCF |
Sony Ericsson Remote Control Configuration |
| KCH |
KChess Notation File (Ark Angles) |
| KCL |
KeywordConvert Keyword/Phrase List (FormatBlue Software) |
| KCL |
Kyoto Common LISP Source Code |
| KCM |
KönyvCalc File (MM.sys Számítástechnikai Bt.) |
| KCO |
Kwalitan Codes (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KCP |
Keychamp File |
| KCT |
Kwalitan Categories (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KDB |
kusziDataBase Database File (kusziNET) |
| KDB |
kinodb File (datb) |
| KDB |
Doobs Database (Kyuran's World) |
| KDB |
KeePass Password Database (ver 1.x) (Dominik Reichl) |
| KDBX |
KeePass Password Database (ver 2.x) (Dominik Reichl) |
| KDC |
Kwalitan Document (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KDC |
Kodak RAW Bitmap Image (Eastman Kodak Company) |
| KDELNK |
KDE Desktop |
| KDEVELOP |
KDevelop Global Project Configuration Information (KDevelop Team) |
| KDEVPRJ |
KDevelop Project File (KDevelop Team) |
| KDEVSES |
KDevelop Specific Behavior Configuration File (KDevelop Team) |
| KDF |
Kinkos Photo (Kinko's, Inc.) |
| KDF |
VisiQuest (Khoros) Standard Data Format (AccuSoft) |
| KDH |
CAJViewer |
| KDK |
Kodak Proprietary Decimated TIFF Format |
| KDO |
Kudo Picture Browser |
| KDT |
Medbasin Evaporation Data (National Technical University of Athens, Laboratory of Reclamation Works & Water Resources Management) |
| KDW |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KE$ |
Modem Bitware Fax Disk2 File |
| KED |
KEDIT Profile and Macro File |
| KEN |
Player CDcheck Compressed File |
| KEP |
SapShow Training File (SAP) |
| KEP |
Turbo Pascal DOS TP19 Compressed Kepler File (Borland Software Corporation) |
| KERNEL |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KES |
Kurzweil 1000 and 3000 Accessible Documents (Kurzweil Educational Systems, Inc.) |
| KEV |
JAWS for Windows Preload File (Freedom Scientific) |
| KEX |
Haxial KRE KRE Executable (Haxial Software Pty Ltd.) |
| KEX |
KEDIT Macro File |
| KEXI |
Kexi Native Database File (KDE e.V.) |
| KEXIS |
Kexi Database Connection Parameter File (KDE e.V.) |
| KEXT |
Mac OS X Kernel Extension (Apple Inc.) |
| KEY |
Sentry 2020 Encryption File |
| KEY |
Program Security or Registration File |
| KEY |
National Construction Estimator 32 Costbook Key File |
| KEY |
TBAV File |
| KEY |
Top Secret Crypto Gold (TAN$TAAFL Software Company) |
| KEY |
AntiVir PersonalEdition License Key File (AntiVir PersonalProducts GmbH) |
| KEY |
Avira Product Key (Avira GmbH) |
| KEY |
Keynote Presentation Wrapper Folder (Apple Inc.) |
| KEY |
Business Key Accounting File (Universal Systems) |
| KEY |
BioWare Aurora Engine Resource File (BioWare Corp.) |
| KEY |
Notes 5 Full Text Index (IBM) |
| KEY |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KEY |
Kaspersky Anti-virus Toolkit Key File (Kaspersky Lab) |
| KEY |
Keyboard Definition File |
| KEY |
Infinity Game Engine Directory of Resources, Locations and Types (BioWare Corp.) |
| KEY |
FractInt Demo Script |
| KEY |
ArcView Geocoding Matching Keys (ESRI) |
| KEY |
DataCAD Icon Toolbar File (DATACAD LLC) |
| KEY |
OS/2 Archive .KEY-file |
| KEY |
Diablo II Key File (Blizzard Entertainment) |
| KEY |
Forecast Pro Datafile |
| KEY1 |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KEYBOARD |
Amaya Configuration |
| KEYCHANGER |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KEYNOTE |
iWork Keynote File (Apple Inc.) |
| KEYS |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KE_ |
Ntgraph Ze32v215 File |
| KF2 |
Max Payne Model File (Rockstar Games) |
| KFA |
Dark Age of Camelot Animation |
| KFA |
IRIS Shortened Format (eurobraille) |
| KFI |
IRIS Native Data File (eurobraille) |
| KFL |
Pegasus Mail Auto-Reply Memory File (David Harris) |
| KFL |
Kwalitan Filter (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KFL |
KFLog Airfield File |
| KFL |
IRIS Literary (eurobraille) |
| KFM |
KEY Form Designer Form Design (Broderbund) |
| KFM |
GameBryo KFM File (Emergent Game Technologies) |
| KFN |
KaraFun Karaoke Song (RECISIO S.A.R.L.) |
| KFP |
Kinkos File Prep Tool |
| KFS |
Pegasus Mail Static Kill File (David Harris) |
| KFS |
Max Payne Model File (Rockstar Games) |
| KFT |
Matrox X Tools Keyframe (Matrox Electronic Systems Ltd.) |
| KFX |
KoFax Group 4 Image |
| KFX |
2D Graphic |
| KGB |
Z80 Spectrum Emulator Snap/File Format |
| KGB |
KGB Archiver Compressed Archive (Tomasz Pawlak) |
| KGB |
Kremlin Encrypt File |
| KGP |
Image |
| KHD |
ViewChoice (Payroll Associates, LLC) |
| KHF |
Kwalitan Tree Structure (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KHS |
Kwalitan History (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KHTMP |
Google Earth Temporary Object Location (Google) |
| KIC |
Kodak Image Compression File (Eastman Kodak Company) |
| KICK |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KICK3 |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KID |
Tonline Bsw4 Install Mdmimp File |
| KID |
Kidspiration (Inspiration Software, Inc.) |
| KID |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KIF |
Knowledge Interchange Format Draft Proposition |
| KIF |
AutoCAD Key Index (Autodesk, Inc.) |
| KIK |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KIL |
Interview File |
| KILLER |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KIM |
Commodore KIM-1 Program Image File |
| KIN |
Kinemage Chemical Protein Language |
| KIP |
OA-KIP Client Data Transfer File (van Ovost Automatisering b.v.) |
| KIT |
Raven Toolkit File |
| KIT |
20-20 Design Kitchen Design (20-20 Technologies) |
| KIT |
Battery Drum Kit (Native Instruments) |
| KIT |
Power Chord Drum Kit |
| KITCHEN |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KITTEN |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KIX |
KiXtart Script |
| KIZ |
UUencoded File |
| KIZ |
Kodak Digital Postcard File |
| KJV |
TheWord & Bible Companion King James Version Bible |
| KK1 |
ViewChoice (Payroll Associates, LLC) |
| KK2 |
ViewChoice (Payroll Associates, LLC) |
| KKT |
TTSKONE |
| KKW |
RoboHELP Keyword Help Project Index File |
| KL |
Haxial Compiler Haxial KL Source File (Haxial Software Ltd.) |
| KLA |
KLARFF Map Data |
| KLB |
Klemmbretter |
| KLB |
GraphicWorks Album |
| KLD |
Dungeon Keeper 2 Playable Map (Electronic Arts, Inc.) |
| KLI |
KalKulator Linear Algebra File |
| KLIP |
KlipFolio Klip (serence inc.) |
| KLN |
COLOGNE Multilingual Transliteration Scheme |
| KM |
BMC Software Patrol File |
| KM |
COOL Biz Database Diagram (Sterling Software, Inc.) |
| KM2 |
ActiveModeler Professional Process Map (KAISHA-Tec Co. Ltd.) |
| KM3 |
Kernel MetaMetaModel |
| KMA |
Correlate K-Map Structure (Correlate AS.) |
| KMA |
Video Hoster Karaoke File (Micro Technology Unlimited) |
| KMA |
Kodak Memory Album (Kodak) |
| kmap |
lyx Keymap |
| KMC |
Correlate (Correlate AS.) |
| KMD |
AIMAX Keyboard Macro (TA Engineering) |
| KMD |
Model Browser File (Metis) |
| KMD |
Media Desktop File (Kaaza) |
| KMD |
ABSTAT for Windows Batch File (AndersonBell Corp) |
| KMD |
Clicker Module Output |
| KMDR |
Kommander (KDE Web Dev Team) |
| KMF |
Kwalitan Memo (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KML |
Google Earth Placemark (Google) |
| KML |
Emu48 Emulator Keyboard Configuration File |
| KML |
Kedit Macro Library |
| KML |
Keyhole Placemark (Google) |
| KML |
HP48 Emulator Win48 Script |
| KMN |
SIL Hebrew Font System Keyboard |
| KMP |
Knowledge Manager Knowledge Base Compressed Map (Hypersoft-net) |
| KMP |
Correlate K-Map KnowledgeMap (Correlate AS) |
| KMP |
Korg Trinity KeyMaP File |
| KMP |
Ketchum Media Player Playlist (Ketchum Software Inc.) |
| KMP |
KORG Trinity/Triton Multisample (KORG) |
| KMS |
Model Browser Shortcut (Metis) |
| KMS |
Correlate Solution Topics (Correlate AS.) |
| KMV |
Model Browser File (Metis) |
| KMY |
KMyMoney Decompressed XML Data |
| KMZ |
Google Earth Saved Working Session (Google) |
| KMZ |
Correlate K-Map Zipped KnowledgeMap (Correlate AS) |
| KM_ |
Seqmax Seqprest Compressed Audio File |
| KND |
NEPLAN NEPLAN-DOS Import/Export File (BCP Busarello + Cott + Partner Inc.) |
| KNF |
Universal Flat Knitting Machine Pattern Design |
| KNF |
Orchida Knitting System (Orchida Soft) |
| KNF |
Personal Knowbase Custom Import Filter (Bitsmith Software) |
| KNN |
Clarion for Windows Database Key (SoftVelocity) |
| KNO |
Personal Knowbase Data (Bitsmith Software) |
| KNOW |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KNT |
KeyNote Note File (Marek Jedlinski) |
| KNW |
Known Problems |
| KO |
IBM/Tools/Updater File |
| KOA |
Koala Paint C64 Bitmap |
| KOD |
Code |
| KOE |
Turbo Pascal DOS File (Borland Software Corporation) |
| KOK |
DEL MP3 Karaoke |
| KOM |
Kit-O-Mat 3D Model File (KingMill Enterprises LLC) |
| KON |
Konfabulator Widget Code (Konfabulator) |
| KOR |
Korean Text File |
| KOR |
Correction File |
| KOS |
MicroType Pro Document |
| KOSIMA |
Kosima File |
| KOURSE |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KOZ |
Sprint Music Store Music Download for Phone (Sprint Nextel) |
| KPD |
Kapital Database File (K Software) |
| KPF |
Komodo Project File (ActiveState Software) |
| KPF |
Kapere |
| KPG |
Kai'S Power Goo Graphic |
| KPJ |
K Database Magic Project File (Sandor Kovacs) |
| KPL |
Kazaa Playlist |
| KPL |
KPL Source Code |
| KPP |
SmartPad Toolpad |
| KPP |
Kudo Place Pack, Place Module |
| KPP |
Kid Pix Deluxe Slide Show (Broderbund) |
| KPPX |
Keypoint Presentation (Digitalsoft) |
| KPR |
KPresenter Slide Show (KOffice Web Team) |
| KPR |
Fifa World Cup Game Data Comon be File |
| KPR |
Kwalitan Project (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KPS |
IBM KIPS Bitmap |
| KPT |
KPresenter Template (KOffice Web Team) |
| KPX |
Kid Pix Deluxe Data File (Broderbund) |
| KQL |
Kyle's Quest Level Editor Graphic (Crimson Fire Entertainment) |
| KQP |
Konica Quality Picture |
| KR1 |
Kurzweil 2000 Sample (Kurzweil Music Systems, Inc.) |
| KRA |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRA |
Krita Image (The KDE Project) |
| KRACK |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRACKS |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRAK |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRAW |
BRSTM Audio Stream (Nintendo) |
| KRAW |
Macintosh OS X Kernel-Raw Image Format (Apple Inc.) |
| KRC |
Mouse and Key Recorder Recorded File (Kra-Tronic Corporation) |
| KRIS |
Kris Tracker Format Song |
| KRISTAL |
KRISTAL Audio Engine Project File (Kreatives.org) |
| KRK |
Xbox Music Mixer Karaoke-enabled Music File (Microsoft Corporation) |
| KRK |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRN |
NBA99 Ice Hockey Foreground Font |
| KROMHE |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KRP |
HiCAD 3D Part File (ISD Benelux B.V.) |
| KRX |
Karaoke MIDI File |
| KRY |
Herolab Krypten |
| KRZ |
Kurzweil 2000 Sample (Kurzweil Music Systems, Inc.) |
| KS |
Works Sheet (Microsoft Corporation) |
| KS |
SOF Game File Log |
| KSC |
KORG Trinity/Triton Script (KORG) |
| KSC |
Korg Trinity Script |
| KSE |
Keepsake Studio Export File |
| KSF |
Kick it Up Stepfiles |
| KSF |
KORG Trinity/Triton Sample (KORG) |
| KSG |
Kwalitan Segment (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KSH |
Prodigy Internet Registration File |
| KSH |
Dazzle Dazzle Realization |
| KSH |
UNIX Shell Script |
| KSHRC |
UNIX Kom Shell Environment File |
| KSL |
Karaoke Song List Creator Song List (Airwer) |
| KSM |
Kefrens-Sound Machine Format Song |
| KSM |
Embroidery File Format for Pfaff Machines |
| KSM |
Ken Silverman Music Format |
| KSS |
MSX Music File |
| KSS |
K-ForCE Scoresheet File (Stephan Rakonza) |
| KSS |
FabTrol MRP Template File (FabTrol Systems, Inc) |
| KSS |
KDE [UNIX/Linux Desktop] Screen Saver (KDE) |
| KST |
Olivetti Olitext Plus Script File |
| KSW |
Kepler Scientific Workflows (Kepler Project) |
| KT2 |
BATTERY 2 Drum Kit (Native Instruments) |
| KT3 |
Battery 3 Battery 3 (Native Instruments) |
| KTE |
FoilMaker Kite Design |
| KTH |
Keynote Theme File (Apple Inc.) |
| KTI |
Kelvin TOP-SET Investigator Investigation Data (The Kelvin Consultants Limited) |
| KTK |
Kutoka's Mia |
| KTP |
Clarion for Windows Temporary Key File (SoftVelocity) |
| KTT |
KeyText Data File |
| KTX |
Kwalitan Text (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KU |
Knowledge Explorer Knowledge Representation Knowledge Unit |
| KUMAC |
Physics Analysis Workstation Macro File |
| KUP |
Karaoke Song List Creator (Airwer) |
| KV3 |
KM-NET Viewer Database (Kyocera Mita Corporation) |
| KVA |
KVIrc Add-on (KVIrc Development Team) |
| KVB |
Klick-N-View Business Cards |
| KVC |
KVIrc Configuration (KVIrc Development Team) |
| KVQ |
Sega Smash Pack PC Version File (Sega of America, Inc.) |
| KVS |
KVIrc Script (KVIrc Development Team) |
| KVT |
KVIrc Theme (KVIrc Development Team) |
| KVT |
BASIC QuickBAS QuickB03 File |
| KVW |
Google Earth Workspace (Google) |
| KW$ |
NTgraph Visual C Wizzard File |
| KW3 |
KanjiWORD Document (Pacific Software Publishing, Inc.) |
| KWB |
Kwalitan Workfile (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KWB |
KeyWord Braille File (Pulse Data International Ltd) |
| KWC |
KeyWallet Compressed Skin (KeyWallet GbR) |
| KWD |
KWord File (KWord Team) |
| KWD |
Dungeon Keeper 2 Playable Map (Electronic Arts, Inc.) |
| KWD |
Keyword |
| KWF |
Kartex |
| KWF |
Kwalitan Word List (Vincent Peters, Department of Research Methodology, University of Nijmegen, The Netherlands) |
| KWF |
Delphi Pascal Chart |
| KWI |
Navigation System Data File (KIWI Format) |
| KWIC |
Unknown Apple II File (found on Golden Orchard Apple II CD Rom) |
| KWO |
KeyWallet Object (KeyWallet GbR) |
| KWS |
KeyWallet Skin (KeyWallet GbR) |
| KWS |
Kyocera Ringtone |
| KXS |
Kexis Lossless Compressed Audio |
| KY |
Peachtext List Manager (Peachtree Software (Sage Software SB, Inc.)) |
| KYB |
Keyboard Layout |
| KYE |
Kye Game Data |
| KYF |
Visual-Voice Mouth Movement File |
| KYS |
Premiere Keys File (Adobe Systems Incorporated) |
| KYS |
SourceOffSite Server Keys |
| KYS |
Photoshop CS Keyboard Shortcut (Adobe Systems Incorporated) |
| KZM |
Karizma Designer Album File (Karizma) |
| KZP |
Kazoo3D or KazooStudio KazooPicture |
If you need to see another list, please select here...
