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.
Refine your search with categories and letters
The VMSD file is a metadata file used by VMware virtualization software, specifically associated with VMware Workstation, VMware Playe…
The GCD file format is primarily associated with Generic CADD, a popular computer-aided design (CAD) software package that was widely…
A 'fumen' file is a binary data format primarily used by the 'Taiko no Tatsujin' (Drum Master) series of rhythm games developed by Ban…
A file with the MTW extension is a Minitab Worksheet used by Minitab, a popular statistical analysis software package. It stores data…
The /etc/passwd file is a fundamental configuration file in Unix-like operating systems, including Linux and macOS. It is a plain-text…
The CUP file extension is primarily associated with SeeYou, a comprehensive flight planning and analysis software suite developed by N…
The WPT file extension is primarily associated with template files used by word processing applications, most notably Corel WordPerfec…
The MVNX file format is a proprietary XML-based format developed by Xsens for storing motion capture data. It is primarily used by the…
The RDF (Resource Description Framework) file extension represents a metadata file format used to store information about resources on…
The NOS file extension is primarily associated with Nokia Operator Settings. These files were historically used by Nokia mobile device…
A GPG file is an encrypted or digitally signed file created using GNU Privacy Guard (GnuPG), which is a free, open-source implementati…
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 TRDP file format is a proprietary file format developed by Progress Software for use with the Telerik Reporting engine. It is a co…
A .rgn file is primarily associated with Garmin GPS devices and is used to store region-specific data, most commonly for firmware upda…
The Bean Markup Language (BML) is an XML-based component configuration or scripting language designed specifically for wiring together…
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…
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…
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…
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 VMSD file is a metadata file used by VMware virtualization software, specifically associated with VMware Workstation, VMware Player, and VMware ESXi. When…
The GCD file format is primarily associated with Generic CADD, a popular computer-aided design (CAD) software package that was widely used in the 1980s and 199…
A 'fumen' file is a binary data format primarily used by the 'Taiko no Tatsujin' (Drum Master) series of rhythm games developed by Bandai Namco. The term 'fume…
A file with the MTW extension is a Minitab Worksheet used by Minitab, a popular statistical analysis software package. It stores data in a spreadsheet-like gri…
The /etc/passwd file is a fundamental configuration file in Unix-like operating systems, including Linux and macOS. It is a plain-text file that contains essen…
The CUP file extension is primarily associated with SeeYou, a comprehensive flight planning and analysis software suite developed by Naviter, which is widely u…
The WPT file extension is primarily associated with template files used by word processing applications, most notably Corel WordPerfect and Kingsoft WPS Office…
The MVNX file format is a proprietary XML-based format developed by Xsens for storing motion capture data. It is primarily used by the Xsens MVN Animate and MV…
The RDF (Resource Description Framework) file extension represents a metadata file format used to store information about resources on the web. Developed by th…
The NOS file extension is primarily associated with Nokia Operator Settings. These files were historically used by Nokia mobile devices to store and transmit c…
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 .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 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…
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 Bean Markup Language (BML) is an XML-based component configuration or scripting language designed specifically for wiring together Java Beans. Originally d…
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…
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…
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 (…
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…
Everything you need to know about file extensions