We've had a request to have the Burmese language set in Office 2016..I've found this solution below but not sure of what the actual file name would be to change it too. If there is another solution I'm open to that as well. Thanks,
You can do this in a much less intrusive way by opening the Terminal and entering:
defaults write com.microsoft.Excel AppleLanguages '("pt-BR")'
defaults write com.microsoft.Word AppleLanguages '("pt-BR")'
defaults write com.microsoft.Powerpoint AppleLanguages '("pt-BR")'
Change pt-BR for the wanted language.
With this, you get the app translated and also spell check working.
