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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CMake is an open-source, cross-platform family of tools designed to build, test, and package software. The .cmake file extension is pr…
QML (Qt Modeling Language) is a declarative user interface markup language used for designing and developing application interfaces wi…
A .vbproj file is an XML-based project file used by Microsoft Visual Studio to manage and organize Visual Basic .NET (VB.NET) source c…
A VBP file is a project file created and used by Microsoft Visual Basic, specifically versions 4.0 through 6.0. It serves as a central…
A VBW file is a workspace information file created and used by Microsoft Visual Basic, specifically version 6.0. It is a plain text fi…
A PBR file is a PowerBuilder Resource file used by the PowerBuilder development environment, originally created by Sybase and now main…
An FSX file is a source code script written in F# (pronounced F sharp), which is a functional-first, multi-paradigm programming langua…
An AutoCAD VBA Project file, identified by the .dvb extension, is a specialized file format used by Autodesk's AutoCAD software to sto…
A Ninja build file is a configuration file used by the Ninja build system, a small and incredibly fast build tool designed to focus on…
A XIB file is an XML-based file format used by Apple's Interface Builder, which is integrated into the Xcode development environment…
The VFP file extension is primarily associated with Microsoft Visual FoxPro, a powerful data-centric programming language and environm…
The IPYNB file extension stands for Interactive Python Notebook, which is the standard format used by the Jupyter Notebook application…
The vcproj file format is an XML-based project file used by Microsoft Visual Studio versions 2002 through 2008. It serves as a configu…
A PBL file, commonly referred to as a 'Pibble,' is a library file used by PowerBuilder, an integrated development environment (IDE) cu…
JRXML is an XML-based file format used by the JasperReports library, which is a popular open-source reporting engine written in Java…
The .nasm file extension is primarily associated with the Netwide Assembler (NASM), which is an 80x86 and x86-64 assembler designed fo…
The CSX file extension represents a C# Script file, which is a specialized version of the standard C# source code file. Unlike traditi…
BeatSaber Markup Language (BSML) is a specialized XML-based markup language used primarily within the modding community of the virtual…
A Gradle file, most commonly encountered as build.gradle, is a configuration script used by the Gradle build automation system. It is…
A VBG file is a project group file created and used by Microsoft Visual Basic versions 5.0 and 6.0. It serves as a container or worksp…
The .csproj.user file is a specialized configuration file used by Microsoft Visual Studio to store user-specific settings for a C# pro…
A PJX file is a project management file created and used by Microsoft Visual FoxPro, a data-centric procedural programming language an…
A CBP file is a project file created by Code::Blocks, which is a free, open-source, and cross-platform Integrated Development Environm…
A file with the .sln.dotsettings extension is an XML-based configuration file used by JetBrains ReSharper and JetBrains Rider, which a…
CMake is an open-source, cross-platform family of tools designed to build, test, and package software. The .cmake file extension is primarily used for CMake sc…
QML (Qt Modeling Language) is a declarative user interface markup language used for designing and developing application interfaces within the Qt framework. It…
A .vbproj file is an XML-based project file used by Microsoft Visual Studio to manage and organize Visual Basic .NET (VB.NET) source code files and related res…
A VBP file is a project file created and used by Microsoft Visual Basic, specifically versions 4.0 through 6.0. It serves as a central configuration manifest t…
A VBW file is a workspace information file created and used by Microsoft Visual Basic, specifically version 6.0. It is a plain text file that stores the state…
A PBR file is a PowerBuilder Resource file used by the PowerBuilder development environment, originally created by Sybase and now maintained by Appeon. These f…
An FSX file is a source code script written in F# (pronounced F sharp), which is a functional-first, multi-paradigm programming language that is part of the .N…
An AutoCAD VBA Project file, identified by the .dvb extension, is a specialized file format used by Autodesk's AutoCAD software to store Visual Basic for Appli…
A Ninja build file is a configuration file used by the Ninja build system, a small and incredibly fast build tool designed to focus on speed. Unlike more tradi…
A XIB file is an XML-based file format used by Apple's Interface Builder, which is integrated into the Xcode development environment, to design user interfaces…
The VFP file extension is primarily associated with Microsoft Visual FoxPro, a powerful data-centric programming language and environment used for building dat…
The IPYNB file extension stands for Interactive Python Notebook, which is the standard format used by the Jupyter Notebook application and its predecessor, IPy…
The vcproj file format is an XML-based project file used by Microsoft Visual Studio versions 2002 through 2008. It serves as a configuration file that stores s…
A PBL file, commonly referred to as a 'Pibble,' is a library file used by PowerBuilder, an integrated development environment (IDE) currently developed by Appe…
JRXML is an XML-based file format used by the JasperReports library, which is a popular open-source reporting engine written in Java. These files serve as repo…
The .nasm file extension is primarily associated with the Netwide Assembler (NASM), which is an 80x86 and x86-64 assembler designed for portability and modular…
The CSX file extension represents a C# Script file, which is a specialized version of the standard C# source code file. Unlike traditional .cs files that must…
BeatSaber Markup Language (BSML) is a specialized XML-based markup language used primarily within the modding community of the virtual reality rhythm game, Bea…
A Gradle file, most commonly encountered as build.gradle, is a configuration script used by the Gradle build automation system. It is a fundamental component i…
A VBG file is a project group file created and used by Microsoft Visual Basic versions 5.0 and 6.0. It serves as a container or workspace file that allows deve…
The .csproj.user file is a specialized configuration file used by Microsoft Visual Studio to store user-specific settings for a C# project. While the primary…
A PJX file is a project management file created and used by Microsoft Visual FoxPro, a data-centric procedural programming language and relational database man…
A CBP file is a project file created by Code::Blocks, which is a free, open-source, and cross-platform Integrated Development Environment (IDE) designed for C…
A file with the .sln.dotsettings extension is an XML-based configuration file used by JetBrains ReSharper and JetBrains Rider, which are popular developer prod…
Everything you need to know about file extensions