Windows
Support Guide

Applies to: Microsoft Windows (All versions)
Home Find file extension (eg.: .doc,.png)

File extension?

A file extension is a suffix to the name of a computer file, which defines and determines easily the file's generic type. In Windows and DOS operating system file extension is a requirement whereas, in some other operating system such as UNIX it is optional. Usually the file extension consists of two, three or four characters following a period.
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Recently updated file extensions

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Find file extension (eg.: .pdf)

.D - Miscellaneous file type

.d00 - Miscellaneous file type

.d01 - Audio file type

.D05 - Miscellaneous file type

.d08 - Data file type

.d2c - Miscellaneous file type

.d2d - Miscellaneous file type

.d2h - Miscellaneous file type

.d2v - Miscellaneous file type

.d4d - Miscellaneous file type

.d4p - Miscellaneous file type

.d50 - Miscellaneous file type

.d64 - Emulator file type

.da - Miscellaneous file type

.da_ - Archive file type

.daa - Disk Image file type

.dab - Miscellaneous file type

.dac - Miscellaneous file type

.daConfig - Miscellaneous file type

.daConnections - Miscellaneous file type

.dad - Miscellaneous file type

.daDiagrams - Miscellaneous file type

.daDictionary - Miscellaneous file type

.dae;.flt;.nbf;.nvb;...dll - Miscellaneous file type

.daf - Miscellaneous file type

.dak - Miscellaneous file type

.dal - Video file type

.dao - Miscellaneous file type

.dap - Data file type

.daproj - Miscellaneous file type

.daq - Miscellaneous file type

.dar - Miscellaneous file type

.dart - Miscellaneous file type

.das - Miscellaneous file type

.daschema - Miscellaneous file type

.dat - Data file type

.data - Database file type

.database - Miscellaneous file type

.datacachingshell - Miscellaneous file type

.datasource - Miscellaneous file type

.dav - Video file type

.dax - Archive file type

.daz - Miscellaneous file type

.db - Database file type

.db$ - Temporary Files

.db1 - Data file type

.db2 - Database file type

.db3 - Database file type

.dba - Source code and script files

.dbc - Data file type

.dbd - Data file type

.dbdif - Miscellaneous file type

.dbf - Database file type

.dbg - Configuration file type

.dbj - Graphic file type

.dbk - Backup file type

.dbl - Miscellaneous file type

.dbm - Internet related file type

.dbml - Miscellaneous file type

.dbo - Source code and script files

.dbp - Miscellaneous file type

.dbpro - Game file type

.dbproj - Source code and script files

.dbq - Miscellaneous file type

.dbr - Miscellaneous file type

.dbs - Database file type

.dbsdif - Miscellaneous file type

.dbsnapshot - Miscellaneous file type

.dbt - Text file type

.dbw - Database file type

.dbx - Text file type

.dbx_aq - Miscellaneous file type

.dc - Miscellaneous file type

.dc2 - 3D graphics file type

.DC3 - Miscellaneous file type

.dc5 - Miscellaneous file type

.dca - Miscellaneous file type

.dcb - Database file type

.dcd - Miscellaneous file type

.dcdl - Text file type

.dce - Miscellaneous file type

.dcf - Data file type

.dcg - Miscellaneous file type

.dch - Miscellaneous file type

.dcl - Source code and script files

.dcm - Image file type

.dcomp - Miscellaneous file type

.dcp - Data file type

.dcpf - Miscellaneous file type

.dcpr - Miscellaneous file type

.dcr - Image file type

.dcs - Data file type

.dcst - Miscellaneous file type

.dct - Database file type

.dcu - Binary file type

.dcv - Miscellaneous file type

.dcx - Internet related file type

.dd - Graphic file type

.dda - Graphic file type

.ddb - Data file type

.ddc - Miscellaneous file type

.ddd - Miscellaneous file type

.ddf - Data file type

.ddi - Disk Image file type

.ddj - Miscellaneous file type

.ddl - Miscellaneous file type

.ddlqd - Miscellaneous file type

.ddo - Miscellaneous file type

.ddp - System file type

.dds - Image file type

.ddt - Text file type

.ddx - Miscellaneous file type

.DE - Miscellaneous file type

.de2 - Miscellaneous file type

.de3 - Miscellaneous file type

.deb - Archive file type

.dec - Miscellaneous file type

.ded - Miscellaneous file type

.def - Source code and script files

.default - Miscellaneous file type

.dei - Miscellaneous file type

.del - Data file type

.dem - Data file type

.democracy - Miscellaneous file type

.deploy - Miscellaneous file type

.deploymentoptions - Miscellaneous file type

.deploymenttargets - Miscellaneous file type

.der - Internet related file type

.des - Graphic file type

.design - Miscellaneous file type

.desklink - System file type

.desksoftlicense - Miscellaneous file type

.desktop - Miscellaneous file type

.dess - Miscellaneous file type

.det - Miscellaneous file type

.deu - Miscellaneous file type

.dev - Source code and script files

.dewf - Miscellaneous file type

.dez - Miscellaneous file type

.df8 - Miscellaneous file type

.dfd - Miscellaneous file type

.dff - Graphic file type

.dfi - Font file type

.dfl - Text file type

.dfm - Source code and script files

.dfont - Font file type

.dfp - Miscellaneous file type

.dfproj - Miscellaneous file type

.dfs - Graphic file type

.dft - Miscellaneous file type

.dfu - Miscellaneous file type

.dfv - Text file type

.dfx - Graphic file type

.dgf - Miscellaneous file type

.dgn - Graphic file type

.dgp - Miscellaneous file type

.dgr - Miscellaneous file type

.dgs - Text file type

.dh - Miscellaneous file type

.dhp - Miscellaneous file type

.dht - Source code and script files

.dhtml - Miscellaneous file type

.dia - Source code and script files

.diagcab - Miscellaneous file type

.diagcfg - System file type

.diagpkg - System file type

.dib - Image file type

.dic - Miscellaneous file type

.dicom - Miscellaneous file type

.dict - Miscellaneous file type

.didx - Miscellaneous file type

.dif - Data file type

.diff - Miscellaneous file type

.dig - Audio file type

.dim - Miscellaneous file type

.dinerdashSavedGame - Game file type

.dip - Miscellaneous file type

.dipx - Miscellaneous file type

.dir - Data file type

.dis - Data file type

.disabled - Miscellaneous file type

.disco - Internet related file type

.dita - Miscellaneous file type

.ditacomponent - Miscellaneous file type

.ditamap - Miscellaneous file type

.div - Video file type

.divx - Video file type

.dix - Data file type

.diz - Text file type

.djv - Miscellaneous file type

.djvu - Image file type

.dkf - Miscellaneous file type

.dklc - Miscellaneous file type

.dklp - Miscellaneous file type

.dko - Miscellaneous file type

.dks - Miscellaneous file type

.dkt - Miscellaneous file type

.dkx - Miscellaneous file type

.dl - Text file type

.dl_ - Archive file type

.dlc - Data file type

.dlf - Miscellaneous file type

.DLinq - Miscellaneous file type

.dll - Data file type

.dlp - Audio file type

.dlr - Miscellaneous file type

.dls - Audio file type

.dlt - Miscellaneous file type

.dlx - Miscellaneous file type

.dm - Audio file type

.dm2 - Miscellaneous file type

.dma - Miscellaneous file type

.dmb - Video file type

.dmc - Miscellaneous file type

.dmd - Miscellaneous file type

.dmf - Audio file type

.dmg - Disk Image file type

.dml - Configuration file type

.dmm - Miscellaneous file type

.dmp - System file type

.dms - Archive file type

.dmsA - Miscellaneous file type

.DMSD - Miscellaneous file type

.dmse - Miscellaneous file type

.dmskm - Miscellaneous file type

.DMSM - Miscellaneous file type

.DMSP - Miscellaneous file type

.DMSS - Miscellaneous file type

.dmv - Miscellaneous file type

.dmx - Source code and script files

.dmx-info - Miscellaneous file type

.dn - Miscellaneous file type

.dn2 - Miscellaneous file type

.dnb - Miscellaneous file type

.dnc - Miscellaneous file type

.dng - Image file type

.dng ValueType: stri...dll - Miscellaneous file type

.dnl - Text file type

.dnt - Configuration file type

.dntu - Miscellaneous file type

.do - Internet related file type

.do3 - Miscellaneous file type

.do3si - Miscellaneous file type

.do4 - Miscellaneous file type

.do4si - Miscellaneous file type

.doa - Miscellaneous file type

.dob - Miscellaneous file type

.doc - Text file type

.doc_ - Miscellaneous file type

.doc_aq - Miscellaneous file type

.docc - Settings file type

.dochtml - Miscellaneous file type

.docklet - Miscellaneous file type

.dockpack - Miscellaneous file type

.docktheme - Miscellaneous file type

.dockzip - Miscellaneous file type

.docm - Text file type

.docmhtml - Miscellaneous file type

.docx - Text file type

.docx1 - Miscellaneous file type

.docxml - Miscellaneous file type

.dof - Miscellaneous file type

.dog - Image file type

.doh - Miscellaneous file type

.dok - Text file type

.don - Miscellaneous file type

.dop - Miscellaneous file type

.dor - Text file type

.dorasworldadventure...dll - Miscellaneous file type

.dos - Miscellaneous file type

.dot - Text file type

.dothtml - Miscellaneous file type

.dotm - Text file type

.dotx - Text file type

.download - Miscellaneous file type

.dox - Text file type

.doxc - Miscellaneous file type

.doz - Archive file type

.dp - Data file type

.dp2 - Miscellaneous file type

.dp3 - Miscellaneous file type

.dpd - Text file type

.dpf - Miscellaneous file type

.dpfilter - Miscellaneous file type

.dpg - Video file type

.dpk - Miscellaneous file type

.dpl - Miscellaneous file type

.dpm - Data file type

.DPN - Miscellaneous file type

.dpo - Miscellaneous file type

.dpp - Miscellaneous file type

.dppreg - Miscellaneous file type

.dpr - Source code and script files

.dps - Configuration file type

.dpsession - Miscellaneous file type

.dpt - Data file type

.dpx - Image file type

.dql - Miscellaneous file type

.dqy - Database file type

.dr8 - Miscellaneous file type

.drc - Miscellaneous file type

.drd - Miscellaneous file type

.drf - Graphic file type

.drg - Miscellaneous file type

.drh - Miscellaneous file type

.dri - Miscellaneous file type

.drp - Miscellaneous file type

.drs - Configuration file type

.DRT - 3D graphics file type

.drv - System file type

.drw - Graphic file type

.DRWDOT - Miscellaneous file type

.ds - Executable file type

.ds4 - Graphic file type

.dsa - Miscellaneous file type

.dsb - Miscellaneous file type

.dsbfile - Miscellaneous file type

.dsc - Miscellaneous file type

.dscmd - Miscellaneous file type

.dscmdline - Miscellaneous file type

.dsd - Miscellaneous file type

.dse - Miscellaneous file type

.dsf - Configuration file type

.dsg - Miscellaneous file type

.dsi - Miscellaneous file type

.dsk - Disk Image file type

.dsl - Miscellaneous file type

.dsm - Audio file type

.dsn - System file type

.dsp - Source code and script files

.dspackage - Miscellaneous file type

.dsplugin - Miscellaneous file type

.dsprototype - Miscellaneous file type

.dsq - Miscellaneous file type

.dss - Audio file type

.dsslideshow - Miscellaneous file type

.dst - Graphic file type

.dstudio - Miscellaneous file type

.dsv - Database file type

.dsw - Configuration file type

.dsx - Miscellaneous file type

.dsy - Data file type

.dt - Backup file type

.dt_ - Backup file type

.dt2 - Data file type

.dta - Data file type

.dtb - Miscellaneous file type

.dtd - Source code and script files

.DTE - Miscellaneous file type

.dtf - Database file type

.dtg - Miscellaneous file type

.dtm - Audio file type

.dto - Source code and script files

.dtp - Data file type

.dtproj - Miscellaneous file type

.dtq - Miscellaneous file type

.dts - Audio file type

.dtsconfig - Miscellaneous file type

.dtSearch - Miscellaneous file type

.dtSearchTask - Miscellaneous file type

.dtsx - Miscellaneous file type

.dtt - Database file type

.DTV - Miscellaneous file type

.dtz - Archive file type

.dun - Configuration file type

.dus - Font file type

.dv - Video file type

.dv2 - Miscellaneous file type

.dv-avi - Miscellaneous file type

.dvb - Miscellaneous file type

.dvc - Data file type

.dvd - Disk Image file type

.DVD-DVI - Miscellaneous file type

.DVDFab5 - Miscellaneous file type

.DVDFab6 - Miscellaneous file type

.DVDFabBluRay2Bluray - Miscellaneous file type

.dvdfabbluray2dvd - Miscellaneous file type

.DVDFabBluRay2Mobile - Miscellaneous file type

.dvdfabdvd2dvd - Miscellaneous file type

.DVDFabDVD2Mobile - Miscellaneous file type

.DVDFabExpress - Miscellaneous file type

.dvdfabfile2mobile - Miscellaneous file type

.DVDFabFileMover - Miscellaneous file type

.DVDFabGold5 - Miscellaneous file type

.DVDFabHDDecrypter - Miscellaneous file type

.DVDFabMobile - Miscellaneous file type

.DVDFabPlatinum - Miscellaneous file type

.DVDFabPlatinum5 - Miscellaneous file type

.dvdmp - Miscellaneous file type

.dvdprj - Miscellaneous file type

.dvdprofiler - Miscellaneous file type

.dvf - Audio file type

.dvi - Configuration file type

.dvp - Configuration file type

.dvr - Video file type

.dvr-ms - Video file type

.dvs - Miscellaneous file type

.dvsd - Miscellaneous file type

.dw - Miscellaneous file type

.dw2 - Graphic file type

.DW3 - Miscellaneous file type

.dwb - Miscellaneous file type

.dwc - Miscellaneous file type

.dwd - Audio file type

.dwf - Miscellaneous file type

.dwfx - Graphic file type

.dwg - Graphic file type

.dwi - Miscellaneous file type

.dwk - Miscellaneous file type

.dwp - Data file type

.dwproj - Miscellaneous file type

.dwr - Miscellaneous file type

.dws - Miscellaneous file type

.dwt - Miscellaneous file type

.dwz - Graphic file type

.dx - Miscellaneous file type

.dx7 - Miscellaneous file type

.dxb - Miscellaneous file type

.dxcontrol - Miscellaneous file type

.dxe - Miscellaneous file type

.dxeffect - Miscellaneous file type

.dxenv - Miscellaneous file type

.dxf - Graphic file type

.dxfloat32 - Miscellaneous file type

.dxi - Miscellaneous file type

.dxint32 - Miscellaneous file type

.dxj - Miscellaneous file type

.dxl - Miscellaneous file type

.dxlibrary - Miscellaneous file type

.dxlicense - Miscellaneous file type

.dxmaterial - Miscellaneous file type

.dxmesh - Miscellaneous file type

.dxmodule - Miscellaneous file type

.dxn - Text file type

.dxp - Miscellaneous file type

.DXPack - Miscellaneous file type

.dxpackpro - Miscellaneous file type

.dxparticle - Miscellaneous file type

.dxr - Video file type

.dxscene - Miscellaneous file type

.dxscript - Miscellaneous file type

.dxsprite - Miscellaneous file type

.dxstream - Miscellaneous file type

.dxstudio - Miscellaneous file type

.dxstudioconfig - Miscellaneous file type

.dxt - Miscellaneous file type

.dxtheme - Graphic file type

.dxthemepro - Miscellaneous file type

.dxu - Miscellaneous file type

.dxx - Miscellaneous file type

.dyn - Data file type

.dzm - Miscellaneous file type

.dzp - Miscellaneous file type

.dzs - Miscellaneous file type

.dzt - Miscellaneous file type

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