Hi, Valery. The idea behind the XLIFF export/import feature is that you would create the app in your native language, then export it out so you can send the file to a translation company. They will take what you've written (the development language) and translate it into whatever language you're requesting, then give you back another XLIFF file for that language, and you can import that into your project. You wouldn't need to import anything for a language you already have in your project.
Topic:
Developer Tools & Services
SubTopic:
Xcode
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