XML-based resource files used by .NET applications to store localizable strings, images, and other content for different languages.
Resx files store localizable content such as strings, images, and other objects for different languages and cultures.
These files are monolingual, meaning that each file is dedicated to a single language, as the primary mechanism for isolating localizable strings is with resource files.
In localization workflows, resx files provide a structured way to manage translations for .NET applications. Each language gets its own file with a naming convention like “Resources.en-US.resx” for American English or “Resources.fr-FR.resx” for French. This approach keeps the source code clean while making it easy for translators to work with the content.
The XML structure allows for metadata, comments, and different types of resources beyond just text strings, making it a comprehensive solution for .NET localization needs.
Resx files are the standard choice for .NET localization because they integrate seamlessly with the development workflow. Developers can reference resources using strongly-typed classes, and the build system handles the compilation and deployment of localized resources automatically. This makes it easy to maintain multiple language versions without complicating the development process.
Learn more about this file format here and check out how to translate Resx files in our documentation