Microsoft Office 2010 Beta Language Packs are now available for download in 7 languages:

Microsoft Office 2010 Beta Language Packs enable users to change the language of the user interface – menus, dialog boxes, toolbars – of all Microsoft Office client applications on your computer.

When downloading the Language Pack, make sure you choose the version that is appropriate for the Microsoft Office 2010 Beta version installed on your computer (32-bit versus 64-bit).