Language packs are collections of files that allow software or applications to support multiple languages. They typically include translations of user interface elements, help documentation, and other text, enabling users to interact with the software in their preferred language. Language packs are commonly used in operating systems, video games, and productivity applications. Installing a language pack usually requires downloading the specific files for the desired language, such as Spanish, French, or Chinese. Once installed, users can switch the software's language settings, making it more accessible and user-friendly for non-native speakers or those learning a new language.