Display menus and dialog boxes in

Category

User Configuration > Administrative Templates > Microsoft Office 2016 > Language Preferences > Display Language

Scope

User

Registry Key

HKCU\software\policies\microsoft\office\16.0\common\languageresources

Description

Sets the display language of the user interface for all Office 2016 programs. In addition to configuring this setting, consider enabling the same language in the 'Enabled Editing Languages' policy node.