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 .prettierrc file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web development. T…
The .prg file extension is a versatile suffix primarily used to denote program files or source code scripts across several distinct co…
A .properties file is a plain text file used to store configuration information for Java applications. It typically contains key-value…
A .props file is an XML-based configuration file used primarily by Microsoft Visual Studio and the MSBuild engine. These files are des…
Protocol Buffers (protobuf) is a language-neutral, platform-neutral, extensible mechanism for serializing structured data. It's simila…
Protocol Buffers, often shortened to Protobuf, is a language-neutral, platform-neutral, extensible mechanism for serializing structure…
The .prov file extension is primarily associated with the W3C PROV-XML format, which is a standardized XML serialization for the PROV…
The PROV-N file extension represents a file written in the PROV Notation (PROV-N), which is a specific text-based syntax designed for…
A PROVX file is an XML-based configuration file used primarily by Hewlett Packard Enterprise (HPE) server management software, such as…
A .prproj file is a project file created by Adobe Premiere Pro, a professional-grade non-linear video editing software. It serves as a…
A PRT file is a 3D model or part file created with Siemens NX, a high-end computer-aided design (CAD), computer-aided manufacturing (C…
A .ps1 file is a text file containing commands written in the PowerShell scripting language. PowerShell is a task automation and confi…
The PSB file format, also known as "Photoshop Big," is an Adobe Photoshop file format designed to support extremely large images. It i…
The PSD file format is the native file format for Adobe Photoshop. It's a proprietary layered image file format that allows users to s…
A .psql file is a plain text file containing SQL queries designed to be executed against a PostgreSQL database. These files are essent…
A PST file, which stands for Personal Storage Table, is a proprietary file format developed by Microsoft to store local copies of mess…
The .psydat file extension is primarily associated with data generated by PsychoPy, an open-source Python library designed for creatin…
The .psyexp file extension is primarily associated with PsychoPy, an open-source Python library and application used for creating and…
The PTS file format is a widely used ASCII-based data format primarily utilized in 3D scanning, surveying, and computer-aided design (…
The PTX file format is a standard ASCII-based exchange format primarily used in 3D laser scanning and terrestrial surveying. It was de…
Pug (formerly known as Jade) is a high-performance template engine heavily influenced by Haml and implemented with JavaScript for Node…
The PWX file format is a specialized XML-based data format developed by TrainingPeaks for the exchange of athletic performance data. I…
A '.py' file is a source code file written in the Python programming language. Python is a high-level, general-purpose programming lan…
A .pyc file is a compiled bytecode file created by the Python interpreter. When a Python script (.py file) is executed, the interprete…
A .prettierrc file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web development. This file is typically pla…
The .prg file extension is a versatile suffix primarily used to denote program files or source code scripts across several distinct computing platforms and dev…
A .properties file is a plain text file used to store configuration information for Java applications. It typically contains key-value pairs, where the keys re…
A .props file is an XML-based configuration file used primarily by Microsoft Visual Studio and the MSBuild engine. These files are designed to store project-le…
Protocol Buffers (protobuf) is a language-neutral, platform-neutral, extensible mechanism for serializing structured data. It's similar to XML, but smaller, fa…
Protocol Buffers, often shortened to Protobuf, is a language-neutral, platform-neutral, extensible mechanism for serializing structured data. It's similar to X…
The .prov file extension is primarily associated with the W3C PROV-XML format, which is a standardized XML serialization for the PROV Data Model. This format i…
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 (…
A PROVX file is an XML-based configuration file used primarily by Hewlett Packard Enterprise (HPE) server management software, such as HPE Intelligent Provisio…
A .prproj file is a project file created by Adobe Premiere Pro, a professional-grade non-linear video editing software. It serves as a comprehensive container…
A PRT file is a 3D model or part file created with Siemens NX, a high-end computer-aided design (CAD), computer-aided manufacturing (CAM), and computer-aided e…
A .ps1 file is a text file containing commands written in the PowerShell scripting language. PowerShell is a task automation and configuration management frame…
The PSB file format, also known as "Photoshop Big," is an Adobe Photoshop file format designed to support extremely large images. It is essentially an extended…
The PSD file format is the native file format for Adobe Photoshop. It's a proprietary layered image file format that allows users to save images with multiple…
A .psql file is a plain text file containing SQL queries designed to be executed against a PostgreSQL database. These files are essentially scripts that can be…
A PST file, which stands for Personal Storage Table, is a proprietary file format developed by Microsoft to store local copies of messages, calendar events, an…
The .psydat file extension is primarily associated with data generated by PsychoPy, an open-source Python library designed for creating and running psychology…
The .psyexp file extension is primarily associated with PsychoPy, an open-source Python library and application used for creating and running psychology experi…
The PTS file format is a widely used ASCII-based data format primarily utilized in 3D scanning, surveying, and computer-aided design (CAD) workflows. It stores…
The PTX file format is a standard ASCII-based exchange format primarily used in 3D laser scanning and terrestrial surveying. It was developed by Leica Geosyste…
Pug (formerly known as Jade) is a high-performance template engine heavily influenced by Haml and implemented with JavaScript for Node.js and browsers. It's de…
The PWX file format is a specialized XML-based data format developed by TrainingPeaks for the exchange of athletic performance data. It is primarily used by en…
A '.py' file is a source code file written in the Python programming language. Python is a high-level, general-purpose programming language known for its reada…
A .pyc file is a compiled bytecode file created by the Python interpreter. When a Python script (.py file) is executed, the interpreter first compiles it into…
Everything you need to know about file extensions