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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The imovieproj file is a proprietary project file format created and used exclusively by Apple's iMovie video editing software. Unlike…
The Bean Markup Language (BML) is an XML-based component configuration or scripting language designed specifically for wiring together…
The .air file extension is primarily associated with the Adobe Integrated Runtime (AIR), a cross-platform runtime system originally de…
A GPG file is an encrypted or digitally signed file created using GNU Privacy Guard (GnuPG), which is a free, open-source implementati…
The .lisp file extension is used for source code files written in the Lisp programming language, which is one of the oldest high-level…
The VMC file format is a configuration file primarily associated with Microsoft Virtual PC, a virtualization software that allows user…
YAML (which stands for "YAML Ain't Markup Language") is a human-readable data serialization standard that is commonly used for configu…
An .npmignore file is a configuration file used by the Node Package Manager (npm) in the Node.js development ecosystem. Its primary pu…
A .hgignore file is a plain text configuration file used by the Mercurial distributed version control system (DVCS). Its primary purpo…
A .prettierignore file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web developmen…
The .dna file extension is primarily associated with SnapGene, a specialized molecular biology software suite used for documenting, si…
A VBOX-PREV file is a backup configuration file automatically created by Oracle VM VirtualBox, a widely used open-source virtualizatio…
The AMTI file extension is primarily associated with Anquet Maps, a digital mapping software widely used in the United Kingdom for out…
The PROV-N file extension represents a file written in the PROV Notation (PROV-N), which is a specific text-based syntax designed for…
The TRDP file format is a proprietary file format developed by Progress Software for use with the Telerik Reporting engine. It is a co…
An MLY file is a source code file used by Menhir, which is a powerful LR(1) parser generator designed specifically for the OCaml progr…
An OWL file is a semantic web document written in the Web Ontology Language (OWL), a schema markup language designed for defining and…
The SRS file extension is primarily associated with Microsoft Outlook, a widely used personal information manager and email client dev…
The MSWMM file extension is primarily associated with Windows Movie Maker, a discontinued video editing software program developed by…
A .rgn file is primarily associated with Garmin GPS devices and is used to store region-specific data, most commonly for firmware upda…
The BCWAV file format is a proprietary audio container developed by Nintendo specifically for the Nintendo 3DS handheld gaming console…
A TFT file is a compiled Human Machine Interface (HMI) project file used by Nextion smart display screens. Nextion displays are hardwa…
The ADML file format is a language-specific resource file used in conjunction with ADMX (Administrative Template) files within the Mic…
An FDB file is a database file created and used by the Firebird relational database management system (RDBMS). Firebird is an open-sou…
The imovieproj file is a proprietary project file format created and used exclusively by Apple's iMovie video editing software. Unlike a finished video file (s…
The Bean Markup Language (BML) is an XML-based component configuration or scripting language designed specifically for wiring together Java Beans. Originally d…
The .air file extension is primarily associated with the Adobe Integrated Runtime (AIR), a cross-platform runtime system originally developed by Adobe Systems…
A GPG file is an encrypted or digitally signed file created using GNU Privacy Guard (GnuPG), which is a free, open-source implementation of the OpenPGP standar…
The .lisp file extension is used for source code files written in the Lisp programming language, which is one of the oldest high-level programming languages st…
The VMC file format is a configuration file primarily associated with Microsoft Virtual PC, a virtualization software that allows users to run multiple operati…
YAML (which stands for "YAML Ain't Markup Language") is a human-readable data serialization standard that is commonly used for configuration files and in appli…
An .npmignore file is a configuration file used by the Node Package Manager (npm) in the Node.js development ecosystem. Its primary purpose is to prevent speci…
A .hgignore file is a plain text configuration file used by the Mercurial distributed version control system (DVCS). Its primary purpose is to specify untracke…
A .prettierignore file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web development. This file tells the Pr…
The .dna file extension is primarily associated with SnapGene, a specialized molecular biology software suite used for documenting, simulating, and visualizing…
A VBOX-PREV file is a backup configuration file automatically created by Oracle VM VirtualBox, a widely used open-source virtualization software. This file is…
The AMTI file extension is primarily associated with Anquet Maps, a digital mapping software widely used in the United Kingdom for outdoor recreation, navigati…
The PROV-N file extension represents a file written in the PROV Notation (PROV-N), which is a specific text-based syntax designed for the W3C PROV Data Model (…
The TRDP file format is a proprietary file format developed by Progress Software for use with the Telerik Reporting engine. It is a compressed archive format t…
An MLY file is a source code file used by Menhir, which is a powerful LR(1) parser generator designed specifically for the OCaml programming language. Menhir s…
An OWL file is a semantic web document written in the Web Ontology Language (OWL), a schema markup language designed for defining and sharing ontologies on the…
The SRS file extension is primarily associated with Microsoft Outlook, a widely used personal information manager and email client developed by Microsoft. An S…
The MSWMM file extension is primarily associated with Windows Movie Maker, a discontinued video editing software program developed by Microsoft. Unlike standar…
A .rgn file is primarily associated with Garmin GPS devices and is used to store region-specific data, most commonly for firmware updates or map segments. Thes…
The BCWAV file format is a proprietary audio container developed by Nintendo specifically for the Nintendo 3DS handheld gaming console. It is a variant of the…
A TFT file is a compiled Human Machine Interface (HMI) project file used by Nextion smart display screens. Nextion displays are hardware solutions used for cre…
The ADML file format is a language-specific resource file used in conjunction with ADMX (Administrative Template) files within the Microsoft Windows Group Poli…
An FDB file is a database file created and used by the Firebird relational database management system (RDBMS). Firebird is an open-source SQL database engine t…
Everything you need to know about file extensions