The Office localization team has released the Scottish Gaelic “Captions Language Interface Pack” (CLIP). It is available for download here.
A Captions Language Interface Pack is a simple language translation solution that uses tooltip captions to display translations. You can use CLIP as a language aid to see translations of menus and buttons in your own language, or you can use it as a learning tool. When you hover your mouse over a menu or command, a tooltip displays the translation in the local language. You can also add your own translation for user interface items:
It's designed for users who use the English version, but want to see the most common user interface in their own language as well.
A little background information on the Scottish Gaelic language (Wikipedia)
The Scottish Gaelic CLIP is the result of the close collaboration between Microsoft and The European Language Initiative (TELI). TELI is the language consultancy branch of the European Association of Local Government Chief Executives / Union des Dirigeants Territoriaux de l'Europe (UDiTE), and works directly with an Bord na Gadhlig (the Scottish language board).