My language is MIA. I have at least 5 languages installed, and I have followed all the directions, and I have checked the forums, but it is still missing! Find out how to download and install additional language packs for your version of Windows. Explore research at Microsoft, a site featuring the impact of research along with publications, products, downloads, and research careers. Downloads Style Guides. Microsoft Style Guides are collections of rules that define language and style conventions for specific languages. Terminology Collection Description of Microsoft SharePoint Server 2013 Language Pack Service Pack 1 (SP1).