File formats: D

Every format whose extension starts with D.

Formats

FormatNameAboutMain software
.D64Commodore 64 disk imageA Commodore 1541 floppy disk: 683 sectors of 256 bytes, in track order.VICEDocumentedViewerEditorOpen
.DAECOLLADA digital assetKhronos’ XML exchange format for 3D scenes, grouped into libraries.SketchUpDocumentedViewerEditorOpen
.DBFdBASE tableOne dBASE table: a header, field list, then fixed-length text records.LibreOffice CalcDocumentedViewerEditorOpen
.DCMDICOM medical imageMedical scans with patient and study details, as tagged data elements.HorosDocumentedViewerEditorOpen
.DDSDirectDraw SurfaceDirectX textures, usually block-compressed, with mipmaps and cube maps.Paint.NETDocumentedViewerEditorOpen
.DEBDebian packageSoftware for Debian and Ubuntu: an ar archive of control and data tarballs.dpkgDocumentedViewerEditorOpen
.DERDER-encoded certificate or keyCertificates and keys in binary ASN.1: tag, length and value fields.OpenSSLDocumentedViewerEditorOpen
.DESKTOPLinux desktop entryA Linux application launcher: name, icon and command in INI-style text.GNOMEDocumentedViewerEditorOpen
.DEXDalvik ExecutableAndroid app code: Dalvik bytecode for all classes, with shared tables.Android StudioDocumentedViewerEditorOpen
.DFUUSB Device Firmware Upgrade fileUSB device firmware with a 16-byte suffix naming the device it is for.dfu-utilDocumentedViewerEditorOpen
.DJVUDjVuScanned pages split into a text mask and colour layers, each compressed its own way.DjViewDocumentedViewerEditorOpen
.DLSDownloadable SoundsThe MIDI standard’s instrument bank: RIFF chunks of instruments and a wave pool.Awave StudioDocumentedViewerEditorOpen
.DMGApple disk imageThe Mac’s disk image: compressed runs of sectors and a koly trailer.FinderDocumentedViewerEditorOpen
.DNGAdobe Digital NegativeAdobe’s open raw photo format, built on TIFF.Adobe LightroomDocumentedViewerEditorOpen
.DOCWord binary documentWord’s binary format before DOCX, in Word 6.0/95 and Word 97–2003 versions.Microsoft WordDocumentedViewerEditorOpen
.DOCWord 6.0 and 95 documentWord 6.0 and 95 documents: single-byte text in one compound file stream.Microsoft WordDocumentedViewerEditorOpen
.DOCWord 97–2003 documentWord’s binary document from Word 97 to 2003: streams in a compound file.Microsoft WordDocumentedViewerEditorOpen
.DOCXWord documentMicrosoft Word’s ZIP package of XML parts, standard since Word 2007.Microsoft WordDocumentedViewerEditorOpen
.DRAWIOdraw.io diagramdraw.io diagrams: XML pages of shapes and connectors, sometimes compressed.draw.ioDocumentedViewerEditorOpen
.DRCDraco compressed meshGoogle’s compressed mesh and point cloud format, also used inside glTF.draco_decoderDocumentedViewerEditorOpen
.DRPDaVinci Resolve projectA DaVinci Resolve project exported from its database, without the media.DaVinci ResolveDocumentedViewerEditorOpen
.DSKAmstrad CPC disk imageA CPC or Spectrum +3 floppy, track by track with each sector’s ID.Caprice32DocumentedViewerEditorOpen
.DSYMApple debug symbol bundleDebug symbols for macOS and iOS programs: DWARF in a Mach-O file in a bundle.XcodeDocumentedViewerEditorOpen
.DUCKDBDuckDB database fileAn analytical SQL database in one file, its tables stored by column.DuckDBDocumentedViewerEditorOpen
.DWGAutoCAD drawingAutoCAD’s native drawing, versioned by a six-character string at the start.AutoCADDocumentedViewerEditorOpen
.DWOSplit DWARF debug informationDWARF debug data kept out of the object file, packed later into .dwp.GDBDocumentedViewerEditorOpen
.DXFDrawing Exchange FormatAutodesk’s documented exchange format, pairs of group codes and values.AutoCADDocumentedViewerEditorOpen
.DYLIBMach-O executable and libraryPrograms, .dylib libraries and universal binaries on macOS and iOS.XcodeDocumentedViewerEditorOpen