Global Developer Blog
XNA is a tool set with a managed runtime environment provided by Microsoft that enables video game development and management. XNA attempts to bring different aspects of game production into a single system. XNA currently encompasses Microsoft's entire Game Development Sections, including the standard Xbox Development Kit and XNA Game Studio.
XNA Game Studio also provides a robust platform to enable localization of game projects. You may refer here, if you wish to access a step-by-step guide and recommended practices to ensure a game project is localizable.
Wish this resource may be helpful to you. Enjoy it!