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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Settings File Types

Settings files store settings for the operating system and applications. These files are not meant to be opened by the user, but are modified by the corresponding application when the program preferences are changed. Settings files may also be called preference files or configuraton files.

Common settings file extensions include .INI, .CFG, and .PRF.

Extension File Description Popularity
.256Descent 2 Color Palette FileRare
.8st8start Launcher FileRare
.a2mTS-AudioToMIDI Settings FileAverage
.a2themeAston 2 Theme FileAverage
.acbAutoCAD Color Book FileUncommon
.acbAdobe Photoshop Color Book FileAverage
.acblAdobe Color Book Legacy FileUncommon
.acfAdobe Photoshop Custom Filter FileUncommon
.acoAdobe Photoshop Color Swatch FileAverage
.acrobatsecuritysettingsAdobe Acrobat Security Settings FileCommon
.acrodataAcrobat Data FileUncommon
.actAdobe Color Table FileAverage
.acvPhotoshop Curves FileAverage
.acwWindows Accessibility Wizard FileUncommon
.adoAdobe Photoshop Duotone Options FileUncommon
.aeaAe Timer Alarm DocumentUncommon
.ahleMule Metadata FileAverage
.ahsAdobe Halftone Screen FileAverage
.ahuAdobe Photoshop HSL FileAverage
.aiaAdobe Illustrator Action FileAverage
.aitAdobe Illustrator TemplateAverage
.allJava RMI Policy FileUncommon
.alvAdobe Photoshop Levels FileAverage
.alxBlackBerry Application Loader XML FileAverage
.ampAdobe Photoshop Curves Map FileUncommon
.amsAdobe Monitor Setup fileAverage
.aoisCFS Console Add-on Installer Settings FileRare
.apiAdobe Photoshop Inks FileRare
.applicationClickOnce Deployment Manifest FileCommon
.appref-msMicrosoft Application Reference FileCommon
.argAutoCAD ProfileAverage
.arlAOL Organizer FileRare
.arpAdvanced RAR Password Recovery SetupAverage
.aseAdobe Swatch Exchange FileCommon
.aslPhotoshop StyleAverage
.astAdobe Color Separations TableAverage
.asvAdobe Photoshop Selective Color FileUncommon
.aswcsAvast! Compressed Skin FileUncommon
.aswsAvast! Skin FileUncommon
.atcAutoCAD Tool Catalog FileAverage
.atfPhotoshop Transfer Function FileUncommon
.athAlienware AlienFX Theme FileAverage
.atnPhotoshop Actions FileAverage
.atzAston Compiled ThemeAverage
.auxLaTeX Auxiliary FileCommon
.aveAvid User FileUncommon
.avsAVS Preset FileAverage
.avsAvid Project Preferences FileAverage
.avsAdobe Photoshop Variations FileUncommon
.awcavActiveWorlds Custom Avatar FileUncommon
.awsAutoCAD Work Space FileUncommon
.axpCDBurnerXP Audio Compilation FileUncommon
.axtAdobe Photoshop Extract FileAverage
.bauOpenOffice.org AutoText FileAverage
.bcmxBusiness Contact Manager CustomizationAverage
.bcpBlackMagic Custom PaletteAverage
.bcsBoland Calibration Settings FileRare
.bgiBgInfo Configuration FileAverage
.bksNTBackup Settings FileAverage
.blobValve Steam ArchiveAverage
.bltAIM Buddy ListAverage
.blwAdobe Photoshop Black and White Presets FileAverage
.bootInstallShield Boot FileUncommon
.brgProjectWise User Settings FileAverage
.btsearchBitTorrent Search Engine FileAverage
.bxxBS Contact Parameter FileUncommon
.c2rWindows Media Center Click-To-Record FileCommon
.campWCS Color Appearance Model Profile FileAverage
.caseSlipCover Case TemplateUncommon
.cdtCorelDRAW Image TemplateAverage
.cexSolidWorks Enterprise PDM Vault Export FileAverage
.cfSendmail Configuration FileRare
.cfgMAME Configuration FileUncommon
.cfgCitrix Server Connection FileAverage
.cfgLightWave Configuration FileUncommon
.cfgConfiguration FileVery Common
.cfgCelestia Configuration FileUncommon
.cgrQuest3D Channel Group FileUncommon
.chaPhotoshop Channel MixtureUncommon
.chlWinFast PVR2 Channel ListAverage
.chxAutoCAD Standards Check FileAverage
.clgWindows Catalog FileCommon
.clrVue Color Maps FileUncommon
.clrCryptLoad Router Information FileAverage
.cmCable Modem Configuration FileRare
.cmpWindows Connection Manager ProfileAverage
.cnfTelnet Configuration FileUncommon
.cnfMySQL Configuration FileCommon
.confGeneric Configuration FileAverage
.confUnix Configuration FileAverage
.cpfCab Provisioning Format FileUncommon
.cpgESRI Code Page FileAverage
.cprAdobe Captivate Preferences FileUncommon
.cpxOracle ADF Binding Context FileAverage
.csaplanSPSS Analysis Plan FileAverage
.csfAdobe Color Settings FileAverage
.csplanSPSS Sampling Plan FileUncommon
.cstCanvas Custom Set FileUncommon
.ctbAutoCAD Color-Based Plot Style FileCommon
.cuiAutodesk Custom Workspace FileAverage
.cuixAutoCAD Custom User Interface FileAverage
.cusAutoCAD Custom Dictionary FileUncommon
.cvaHP Systems Software Manager Information FileCommon
.cwfCorelDRAW Workspace FileUncommon
.cyberducklicenseCyberduck Donation KeyUncommon
.cyberduckprofileCyberduck Connection ProfileUncommon
.dbbSkype User Information FileCommon
.dbgFoxPro Debugger ConfigurationAverage
.dclAutoCAD Dialog Definition FileAverage
.dcpAdobe DNG Camera ProfileCommon
.dcstAdobe InDesign Document Presets FileAverage
.ddfDiamond Directive FileAverage
.dicproofMicrosoft Dictionary Proofing FileUncommon
.dinfoDivX Temporary Video Info FileUncommon
.directoryKDE Folder View Properties FileAverage
.dolphinviewDolphin Folder View Settings FileAverage
.downloadhostMSN Download Settings FileAverage
.dpsDivX Player 2 Skin FileRare
.drmCubase Drum Map FileAverage
.dsdAutoCAD Drawing Set Description FileAverage
.dswVisual C++ 6 Workspace FileAverage
.ds_storeMac OS X Folder Settings FileAverage
.duckCyberduck BookmarkAverage
.dxlsDashXL Skin Set FileUncommon
.dxpCDBurnerXP Data Disc Compilation FileUncommon
.eapAdobe Photoshop Exposure FileUncommon
.eftxOffice 2007 Theme Effect FileAverage
.elmOffice Theme FileUncommon
.envVue Environment FileUncommon
.envWordPerfect EnvironmentRare
.eqfWinamp Equalizer Preset FileAverage
.eqlMathType SettingsAverage
.eqpMathType PreferencesAverage
.etffEncrypt4all Theme FileRare
.eumEnterprise User Monitor Configuration FileAverage
.ev3Everlock Options FileRare
.exe4jExe4j Configuration FileAverage
.expSonicWALL Preference FileUncommon
.fatZinf Theme FileUncommon
.fccForms Credential Collector FileAverage
.fdLaTeX Font Definition FileAverage
.fdcAutoCAD Field Catalog FileUncommon
.fevFLAMES Environment Variable FileAverage
.ffxAfter Effects Preset FileAverage
.flstAdobe InDesign Flattener Presets FileAverage
.fltVue Filters FileUncommon
.fm3Lotus 1-2-3 Spreadsheet Format FileRare
.fmodAdobe Illustrator Flattening ModuleUncommon
.fmpAutoCAD Font Map FileAverage
.fmtFoxPro Format FileAverage
.fncFrogans Player Network CertificateUncommon
.frcMandelbrot Explorer Color Settings FileUncommon
.frrMandelbrot Explorer Fractal Region Settings FileUncommon
.ftEdgecam Feature TemplateAverage
.fthFoobar2000 Theme FileUncommon
.fthFileMaker Theme FileAverage
.ftpquotaFtpquota FileUncommon
.fwtFacetWin Configuration FileAverage
.gcsxMicrosoft Office SmartArt Color FileUncommon
.gdiagramstyleOmniGraffle Diagram Style FileRare
.gidWindows Help Global Index FileAverage
.ginGEMS Engine Control Unit FileAverage
.gpsGenePix Settings FileUncommon
.gpsGOM Player Skin FileAverage
.gqsxMicrosoft Office SmartArt Styles FileUncommon
.grdPhotoshop Gradient FileAverage
.growlticketGrowl Notification FileAverage
.gtpGNOME Theme Package FileUncommon
.gwsGeoMedia GeoWorkspace FileAverage
.gxtGrand Theft Auto Text FileAverage
.hidSony Ericsson Remote Settings FileAverage
.hmeWindows Mobile Theme FileCommon
.htHyperTerminal Session FileAverage
.iafOutlook Internet Account FileUncommon
.icaCitrix ICA FileCommon
.iccICC ProfileCommon
.icdInstallable Client Driver FileAverage
.icmImage Color Matching ProfileAverage
.iconpackageIconPackager Theme FileAverage
.icursorfxiCursor Effect FileAverage
.idfMIDI Instrument Definition FileRare
.idppAdobe InDesign Preflight ProfileCommon
.igrQuest3D Channel Group Layout FileRare
.ihwIN-HEH Timeline WorkspaceAverage
.iipInstall Creator Pro Settings FileUncommon
.iipThinAnywhere Configuration FileAverage
.iitInstall Creator Settings FileUncommon
.immodulesGTK+ Module FileRare
.infSetup Information FileCommon
.iniWindows Initialization FileVery Common
.iniSymbian OS Configuration FileAverage
.iniGravis UltraSound Bank Setup FileAverage
.inmsAdobe InDesign Menu Set FileUncommon
.insInternet Settings FileCommon
.ipthemeIconPackager Raw Theme FileAverage
.irosAdobe Save For Web Settings FileUncommon
.irsAdobe Save For Web SettingsAverage
.ispIIS Internet Service Provider SettingsUncommon
.issInno Setup ScriptUncommon
.issInstallShield Silent Response FileAverage
.ittIconTweaker Theme FileAverage
.ixdtSearch Index FileUncommon
.jdfAdobe Acrobat Job Definition FileAverage
.jsfProject64 Joystick FileUncommon
.jwsJava Workspace Settings FileAverage
.kbd3ds Max Keyboard Shortcuts FileUncommon
.kdsKD Player Skin FileAverage
.keyKeyboard Definition FileUncommon
.keychainMac OS X Keychain FileVery Common
.kybKeyboard LayoutRare
.kysAdobe Photoshop Keyboard Shortcuts FileAverage
.langSkype Language FileUncommon
.layRhino 3D Layer State FileUncommon
.layMAME Layout FileUncommon
.layoutCode::Blocks Workspace Layout FileRare
.lbuCloaked Affiliate Link Builder Settings FileUncommon
.lgtLet's Go! Theme FileRare
.lilyPCSX2 LilyPad Configuration FileUncommon
.lnstAdobe InDesign Line Presets FileUncommon
.loadersGTK+ Loaders FileRare
.lopMastercook Layout FileAverage
.lrtemplateAdobe Photoshop Lightroom TemplateAverage
.lvaLogitech Video Effects Avatar FileAverage
.lvfLogitech Video Effects FileAverage
.lxcpLCARS x32 Color ProfileRare
.lxsoptLiquid XML Studio Project Options FileUncommon
.lytXcalibur Layout FileUncommon
.lytvanBacsco's Karaoke Player Skin FileRare
.m2sMaxthon 2 Browser Skin FileAverage
.mailhostMSN Mailhost Settings FileAverage
.makeDrush MakefileRare
.materialRigs of Rods Texture Reference FileUncommon
.mclWindows Media Center Link FileAverage
.mcwMonitor Calibration Wizard FileUncommon
.mdpVisual C++ 5 Workspace FileUncommon
.mgmMGCSoft Equation Illustrator MacroAverage
.mgthemeMacGourmet Theme FileUncommon
.mlkMastercook Look FileAverage
.mmdcMediaMonkey Device Configuration FileUncommon
.mmpSymbian Project Specification FileCommon
.mnsAutoCAD Interface Settings FileAverage
.mnuTomTom Menu FileUncommon
.mnuAdobe Photoshop Menu Customization FileUncommon
.mnuAutoCAD Interface Layout FileAverage
.mofManaged Object Format FileAverage
.mpdconfMusic Player Daemon FileUncommon
.mpwMicrosoft Project Workspace FileUncommon
.msfMiranda IM Skin FileUncommon
.msknMediaMonkey Skin FileAverage
.msmWindows Installer Merge ModuleAverage
.msnHost Blocking FileAverage
.mstCorel Presentations Master Template FileUncommon
.mstWindows Installer Setup Transform FileCommon
.mswPainter Color Mixer Swatches FileUncommon
.mtfMotorola Theme FileAverage
.mxcsMandelbrot Explorer Color Scheme FileUncommon
.mxfrMandelbrot Explorer Fractal Region FileUncommon
.mxsPainter Color Mixer Pad FileUncommon
.mxskinMaxthon Skin FileAverage
.mycolorsStardock MyColors Theme FileCommon
.ncfgArcGIS Explorer Configuration FileAverage
.ndQuickBooks Network Data FileAverage
.ndcPersonal Communications Settings FileAverage
.njiNero Job Information File Average
.nkpKontakt Presets FileUncommon
.ntcCamera Control Pro Custom Curves FileUncommon
.ntsLotus Notes Traveler Server Config FileRare
.nvcNikon Vignette Correction FileAverage
.nwvDragon NaturallySpeaking User ArchiveAverage
.obiOutlook RSS Subscription FileCommon
.obtOpenbox Theme FileUncommon
.oceOpen Catalog Extension Connection FileUncommon
.odcOffice Data Connection FileAverage
.oemOEM Setup FileAverage
.olk14prefOutlook Preferences FileRare
.onetoc2Microsoft OneNote Table of Contents FileAverage
.opsOffice Profile Settings FileAverage
.optOptions FileAverage
.optsLinux Configuration Options FileUncommon
.osdxSearch Connector Description FileCommon
.ossMicrosoft Outlook Saved Search FileAverage
.ovpnOpenVPN Configuration FileAverage
.p2mPhotoWorks Appearance FileAverage
.palPainter Custom Palettes FileUncommon
.papersCorel Painter Paper Texture FileUncommon
.pc3AutoCAD Plotter Configuration FileAverage
.pctlKaspersky Parental Control Settings FileAverage
.pdfsAdobe PDF Presets FileRare
.penPaint Shop Pro Pen Preset FileAverage
.perfmoncfgPerformance Monitor Configuration FileUncommon
.pgpAutoCAD Program Parameters FileAverage
.phAOL Phone Home Settings FileUncommon
.phbPhtotoBase Album FileUncommon
.pieGlovePIE Controller ScriptAverage
.pipOffice Personalized Settings FileAverage
.pkgSymbian Package FileAverage
.plistMac OS X Property List FileCommon
.plsPicoLog Settings FileRare
.pmcPerformance Monitor Counter FileAverage
.pmjPegasus Mail Configuration FileAverage
.pmlPyre Properties FileUncommon
.pmpAutoCAD Plot Model Parameter FileAverage
.praWindows Media 9 Plug-in Profile FileRare
.prefMacintosh Preferences FileRare
.prefPreferences FileAverage
.prfFileNet eForms Form Preferences FileUncommon
.prfDirector Preferences FileAverage
.prfClarisWorks Preference FileUncommon
.prfOutlook Profile FileVery Common
.prfpsetPremiere Pro Effect Preset FileAverage
.prmParameter FileAverage
.profileCitrix Application ProfileAverage
.profimailProfiMail Settings FileAverage
.propdescProperty DescriptionAverage
.propertiesJava Properties FileCommon
.propsVisual Studio Project Property FileAverage
.prsBatch & Print Pro Printer Settings FileUncommon
.prstAdobe InDesign Printer Presets FileUncommon
.prxWindows Media Profile FileCommon
.ps1xmlWindows PowerShell Display Configuration FileCommon
.psc1Windows PowerShell Console FileAverage
.psfPhotoshop Proof Settings FileCommon
.psyThe Psychedelic Screen Saver Settings FileUncommon
.ptfPSP Theme FileAverage
.pvsParallels Desktop Configuration FileAverage
.pwsPainter Workspace FileUncommon
.pxbPixelmator Brush FileAverage
.pxgPixelmator Gradient FileUncommon
.q2dQuick 3D Cover Design FileUncommon
.qfNokia Maps Version FileAverage
.qrcQt Resource Collection FileCommon
.qssQt Style SheetAverage
.qtpQuickTime Preferences FileAverage
.qvppQlikView Extension Properties Page FileUncommon
.qvtQlikView Theme FileUncommon
.radCitrix Rapid Application Delivery FileAverage
.raskinplaceRaskin Place Layout FileUncommon
.rbRosebud ProfileRare
.rb4RobotWorks Parameters FileUncommon
.rcfSonicWALL VPN Configuration FileAverage
.rctVisual Studio Resource TemplateAverage
.rdfResource Description Framework FileCommon
.rdiRed Dragon ISecure Settings FileRare
.rdoXerox Rawster Document Object FileAverage
.rdpRemote Desktop Configuration FileCommon
.regRegistration Information FileAverage
.resmoncfgResource Monitor Configuration FileUncommon
.rfqRoboForm SearchCard FileAverage
.rllMicrosoft Resource LibraryAverage
.rmlFTG Configuration FileRare
.rmsJava Application Settings FileUncommon
.rmskinRainmeter Skin FileCommon
.rnxRealPlayer Settings FileUncommon
.rpbRadmin Phonebook FileUncommon
.rpkRadLight Media Player SkinAverage
.rps3ds Max Render Preset SettingsAverage
.rrrRhapzodé Resource RepositoryRare
.rtsRoyal TS Remote Connection FileAverage
.rulesetVisual Studio Code Analysis Rule Set FileAverage
.s2mlStarCraft 2 Map Localization FileAverage
.s2qhStarCraft 2 Localization Header FileUncommon
.s2qlStarCraft 2 Unit Localization FileUncommon
.sbvYouTube Captions FileAverage
.scacfgSuperCard Application Configuration FileUncommon
.schStrater Scheme FileUncommon
.scpcfgSuperCard Project Configuration FileUncommon
.sedIExpress Self Extraction Directive FileAverage
.sequAdobe Acrobat Sequence FileUncommon
.setSettings FileAverage
.setDocument Library Property Set FileRare
.settingsVisual Studio Settings FileAverage
.sfoCuteFTP Search FileAverage
.sgtSPSS Chart TemplateAverage
.shhAdobe Photoshop Shadow/Highlight Settings fileUncommon
.sifWindows Setup Information FileAverage
.skiMotorola Phone Skin FileAverage
.skinInstallShield Skin FileUncommon
.skinASP.NET Skin FileAverage
.sknSymbian OS Skin FileAverage
.skzSuperKaramba ThemeAverage
.slSoftware License FileAverage
.sltMozilla User Profile FolderAverage
.smtSamsung Theme FileAverage
.solFlash Local Shared Object FileAverage
.spfSlingPlayer Favorites FileAverage
.spfxSqueeze Presets FileAverage
.spjSPSS Production Job FileUncommon
.srfSteinberg Resource FileUncommon
.srsOutlook Send/Receive Settings FileAverage
.sslSunlight ScanLibrary FileUncommon
.ssl2Sunlight ScanLibrary 2 FileUncommon
.sssWindowBlinds Substyle FileAverage
.startupinfoE-Prime 2.0 Startup Info FileUncommon
.stbAutoCAD Plot Style Table FileCommon
.steDreamweaver Site Settings FileCommon
.stfMicrosoft Setup Table FileRare
.storyistthemeStoryist Application Theme FileUncommon
.sttSPSS Table TemplateUncommon
.styAegisub Subtitle Styles FileRare
.styleSketchUp StyleCommon
.sw2Softwrap License FileAverage
.szWinamp Classic Skin DownloadUncommon
.t3dTicTacTi Advertisement Definition FileUncommon
.tdfTitle Definition Format FileAverage
.theMicrosoft Plus! Theme FileAverage
.themeComodo Theme FileUncommon
.themeGTK Theme Index FileUncommon
.themepackWindows 7 Theme PackCommon
.thmxOffice 2007 Theme FileCommon
.tloSPSS TableLooks FileUncommon
.tmthemeTextMate Theme FileUncommon
.tparkThemePark Project FileUncommon
.tpfSPSS Text Wizard DocumentAverage
.tplAdobe Photoshop Tool Presets FileUncommon
.trxPASSOLO Translation List FileAverage
.tskPocket PC SkinAverage
.tsmTwinCAT System Manager Configuration FileAverage
.tstTagScanner Text Transform ScriptUncommon
.tszTrillian Skin FileAverage
.ttsToolBook Translation System FileUncommon
.twcTTWin Configuration FileAverage
.typeit4meTypeIt4Me Clippings FileUncommon
.uctUC Browser Theme FileAverage
.udcxUniversal Data Connection FileAverage
.uisWindowBlinds User Interface SpecificationAverage
.upfMicroStation User Preferences FileUncommon
.userVisual Studio Project User Options FileUncommon
.userprofileNorton Antivirus User Profile FileAverage
.utzUIQ Theme PackageCommon
.vboxOracle VM VirtualBox Settings FileCommon
.vbx6settingsVirusBarrier X6 Settings FileUncommon
.vcprefNorton Antivirus Preferences FileAverage
.vcweMbedded Visual C++ Workspace FileUncommon
.vimVim Settings FileAverage
.vimrcVim Runtime Configuration FileAverage
.vltVLC Media Player Skin FileAverage
.vmcWindows Virtual Machine Configuration FileAverage
.vmcxVirtual Machine Shell Information FileAverage
.vmtmVMware Team Data FileAverage
.vmxVMware Configuration FileCommon
.vmxCubase Mixer Settings FileAverage
.vmxfVMware Team Member FileAverage
.vncVNC Configuration FileAverage
.vniDell Webcam Central Application Configuration FileRare
.vphVirtualPhotographer Custom SettingsUncommon
.vspropsVisual Studio Project Property FileAverage
.vssettingsVisual Studio Settings FileAverage
.vswVisio Workspace FileUncommon
.vueFoxPro 2.x View SettingsUncommon
.wcxRemoteApp and Desktop Connections Configuration FileCommon
.wczChameleon Clock Wallpaper FileAverage
.wfcWindows Wireless Network Settings File Common
.wmsWindows Media SkinAverage
.wmzCompressed Windows Media Player SkinAverage
.workBibble Work Queue FileUncommon
.workspaceAdobe Bridge Workspace FileUncommon
.wppWordPerfect Color PaletteRare
.wpsTranslator's Workbench Project FileUncommon
.wzconfigWinZip Configuration FileUncommon
.x4kXML4King Configuration FileRare
.xcuOpenOffice.org Configuration FileAverage
.xdrXML-Data Reduced FileUncommon
.xemeManager Metered UnitsAverage
.xepeManager File Packaging InformationAverage
.xeseManager Skins DefinitionAverage
.xeteManager Process DefinitionAverage
.xeveManager Auto-Update FileAverage
.xgsXACT Global Settings FileUncommon
.xlbExcel Toolbars FileAverage
.xlbOpenOffice.org Module Information FileUncommon
.xpaddercontrollerXpadder Controller ProfileAverage
.xplLcdStudio Playlist FileUncommon
.xstWebSphere Query TemplateUncommon
.xtpAutoCAD Exported Tool Palettes FileAverage
.xtremeWinstep Xtreme Theme PackAverage
.xuiXbox 360 User Interface FileAverage
.xurXbox 360 Binary User Interface FileAverage
.xvmVMware Console Configuration FileAverage
.xwkCrosstalk Communicator Keyboard Mapping FileRare
.zapSoftware Installation SettingsUncommon
.zonCollection Building Custom Zone FileAverage
.zpiPDF Converter Index FileUncommon