Office Language Packs 2013 FAQ
General information
Language Packs are add-in products that can significantly change the user experience of Office programs by enabling support for multiple languages. This includes Menus/Display, Help, Dictionary, Thesaurus, and Spell Checker. In addition to enhancing the user experience, you can elect to use individual aspects of the Language Pack, such as spell checker to proof a document in a language other than the default language set on your computer. Note that if you purchased an Office 365 subscription you can use it to install Office in different languages instead of buying a Language Pack.
Individual Office Language Packs are available for the following languages:

Arabic, Brazilian Portuguese, Bulgarian, Croatian, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kazakh, Korean, Latvian, Lithuanian, Malaysian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian Latin, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, and Vietnamese.
Language Packs enable localized Menus/Display, Help, and document proofing tools for most Office applications, including Word 2013, Excel 2013, PowerPoint 2013, Access 2013, Outlook 2013, OneNote 2013, InfoPath 2013, Publisher 2013, Project 2013, SharePoint Workspace 2013, Visio 2013, and the Microsoft Office suites containing these products. Access 2013 and Project 2013 are not supported in Hindi.

In addition, languages for some other tools are localized when Language Packs are enabled. Application localization varies by language, see the Proofing Tools page for more details.
Office Language Packs on Windows RT devices are free and included with Windows Language Packs that are available through Windows Update.

If you have a Windows RT device, Office Language Packs are included with Windows Language Packs. To get an Office Language Pack on your device, go to the Language settings for your device and add the corresponding Windows Display Language.
How to buy
To buy a Language Pack, visit the Office Language Options page, choose the language you want to buy, click Buy now, and then follow the instructions. Please note that individual Language Packs are not available through volume licensing programs. In addition, Language Packs are only available for the current version of Office.
No. If you purchased an Office 365 subscription you can use it to install Office in different languages instead of buying a Language Pack.
Compatibility
No. Due to changes in application architecture, only Office Language Packs 2013 are compatible with the newest version of Office.
Yes. There are multiple language options for Office. To find out what’s available, go to the Office Language Options page and select the language you’re interested in from the dropdown menu.