When changing back and forth between languages in the Office applications the language that the add-ins are displayed in does not change.
Consider this scenarion: The Office base language is English with a French Language pack. The user can change back and forth between French and English for the Excel application but the add-ins will still be displayed in French.
Consider this scenarion: The Office base language is English with a French Language pack. The user can change back and forth between French and English for the Excel application but the add-ins will still be displayed in French.