Browse file extensions by category or letter. Learn what each file type is used for and find software that can open, view, edit, or convert it.
Use this directory to look up file formats, understand what files are used for, and find compatible applications for Windows, macOS, Linux, mobile, and online tools.
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A D64 file is a disk image format commonly associated with the Commodore 64 (C64) home computer. It's essentially a digital representa…
The D71 file extension represents a disk image format specifically designed for the Commodore 1571 disk drive, which was primarily use…
The d81 file extension is a disk image format specifically created to represent the data stored on a 3.5-inch floppy disk used by the…
The DAE file extension represents a Digital Asset Exchange file, which is a COLLADA (COLLAborative Design Activity) file format. COLLA…
A DB3 file is a database file created by SQLite, a widely used, self-contained, serverless, and zero-configuration SQL database engine…
A DBF file is a database file format commonly associated with dBase, FoxPro, Clipper, and similar database management systems. It stor…
The .dbt file extension is primarily associated with dbt (data build tool), an open-source command-line tool that enables data analyst…
The DBX file format is a proprietary database format used primarily by Microsoft Outlook Express, a legacy email client that was bundl…
A DDL (Data Definition Language) file contains commands used to define the structure of a database. These commands are part of SQL (St…
The .delta file extension is primarily associated with Delta Lake, an open-source storage layer that brings reliability to data lakes…
A .dem file is a Digital Elevation Model (DEM) file, a raster-based geospatial data format used to represent terrain elevation. It sto…
A .devpkg file is a Garmin Device Package used primarily for delivering software updates, firmware, and additional components to Garmi…
The DGN file format is a CAD (Computer-Aided Design) file format primarily associated with Bentley Systems' MicroStation and other CAD…
DjVu (pronounced "déjà vu") is a file format primarily designed for storing scanned documents, especially those containing text, phot…
A DMP file, short for Memory Dump file, is a snapshot of a computer's memory at a specific point in time. These files are typically cr…
The .dna file extension is primarily associated with SnapGene, a specialized molecular biology software suite used for documenting, si…
A DOCM file is a macro-enabled document created by Microsoft Word, the widely used word processing application. Introduced with the re…
The DOT file extension represents a template file created by Microsoft Word, the widely used word processing software. Unlike standard…
A DOTM file is a template file created by Microsoft Word, the widely used word processing software. It is part of the Office Open XML…
A DOTX file is a template file created by Microsoft Word, the widely used word processing application. Introduced with Microsoft Offic…
The PDF (Portable Document Format) file format is a widely used standard developed by Adobe for representing documents in a manner ind…
A DPT file is a presentation template created by Kingsoft Presentation, which is a core component of the WPS Office suite (formerly kn…
The .drawio file format is used by draw.io (now diagrams.net), a free, open-source diagramming application. It stores diagrams, flowch…
The DRP file format is a proprietary project file format used exclusively by Blackmagic Design's DaVinci Resolve, a professional-grade…
A D64 file is a disk image format commonly associated with the Commodore 64 (C64) home computer. It's essentially a digital representation of a 5.25-inch flopp…
The D71 file extension represents a disk image format specifically designed for the Commodore 1571 disk drive, which was primarily used with the Commodore 128…
The d81 file extension is a disk image format specifically created to represent the data stored on a 3.5-inch floppy disk used by the Commodore 1581 disk drive…
The DAE file extension represents a Digital Asset Exchange file, which is a COLLADA (COLLAborative Design Activity) file format. COLLADA is an open standard XM…
A DB3 file is a database file created by SQLite, a widely used, self-contained, serverless, and zero-configuration SQL database engine. It stores structured da…
A DBF file is a database file format commonly associated with dBase, FoxPro, Clipper, and similar database management systems. It stores structured data in a t…
The .dbt file extension is primarily associated with dbt (data build tool), an open-source command-line tool that enables data analysts and engineers to transf…
The DBX file format is a proprietary database format used primarily by Microsoft Outlook Express, a legacy email client that was bundled with Internet Explorer…
A DDL (Data Definition Language) file contains commands used to define the structure of a database. These commands are part of SQL (Structured Query Language)…
The .delta file extension is primarily associated with Delta Lake, an open-source storage layer that brings reliability to data lakes. Delta Lake provides ACID…
A .dem file is a Digital Elevation Model (DEM) file, a raster-based geospatial data format used to represent terrain elevation. It stores elevation values for…
A .devpkg file is a Garmin Device Package used primarily for delivering software updates, firmware, and additional components to Garmin GPS devices, wearables…
The DGN file format is a CAD (Computer-Aided Design) file format primarily associated with Bentley Systems' MicroStation and other CAD applications. It is used…
DjVu (pronounced "déjà vu") is a file format primarily designed for storing scanned documents, especially those containing text, photographs, and line art. It…
A DMP file, short for Memory Dump file, is a snapshot of a computer's memory at a specific point in time. These files are typically created when a program cras…
The .dna file extension is primarily associated with SnapGene, a specialized molecular biology software suite used for documenting, simulating, and visualizing…
A DOCM file is a macro-enabled document created by Microsoft Word, the widely used word processing application. Introduced with the release of Microsoft Office…
The DOT file extension represents a template file created by Microsoft Word, the widely used word processing software. Unlike standard DOC or DOCX files which…
A DOTM file is a template file created by Microsoft Word, the widely used word processing software. It is part of the Office Open XML (OOXML) standard introduc…
A DOTX file is a template file created by Microsoft Word, the widely used word processing application. Introduced with Microsoft Office 2007, it is based on th…
The PDF (Portable Document Format) file format is a widely used standard developed by Adobe for representing documents in a manner independent of application s…
A DPT file is a presentation template created by Kingsoft Presentation, which is a core component of the WPS Office suite (formerly known as Kingsoft Office)…
The .drawio file format is used by draw.io (now diagrams.net), a free, open-source diagramming application. It stores diagrams, flowcharts, UML diagrams, mind…
The DRP file format is a proprietary project file format used exclusively by Blackmagic Design's DaVinci Resolve, a professional-grade non-linear video editing…
Everything you need to know about file extensions