Change your display language in the Desktop app
In the Desktop application, click Settings.
On the Settings page, click General (the wrench icon).
Under Language, Date & Time, click the Language list.
Select a language from the list.
Desktop currently supports the following languages:
Danish
German
English (UK)
English (US)
Spanish (Latin America)
Spanish
French (Canada)
French
Italian
Japanese
Dutch
Polish
Portuguese (Brazil)
Swedish
Chinese
Your new language selection is immediately applied.