Microsoft Office 2010 is available in many languages. In an international setting, you can deploy multiple language versions of Office 2010 in a single installation process. The setup combines a language-neutral core product with one or more language-specific packages to create a complete product. Microsoft Office Proofing tools let users edit documents in more than 50 languages. Depending on the language, these editing tools might include spelling and grammar checkers, thesauruses, and hyphenators. Proofing tools might also include language-specific editing features such as Language AutoDetect, AutoSummarize, and Intelligent AutoCorrect.

• Use Office 2010 Language Pack if users need both the user interface and the proofing tools for the language, or if one language pack can provide all the proofing tool languages that you need. Be aware that each language version of the Office 2010 includes proofing tools for a set of companion languages. For example, when you deploy the English version of an Office 2010 product, users receive proofing tools for both Spanish and French in addition to English. Depending on the number of user interface languages that you want to deploy and the included companion languages, Office 2010 Language Packs might provide all of the proofing tools that you need.
• Office 2010 Proofing Tools Kit contains the proofing tools for all of the languages that are available with Office 2010. Use this option if you do not need the user interface for the language and you must have many proofing tools that are not included in the set of companion languages for any languages installed or included in an additional language pack that you could install.
• The Office 2010 Multi-Language Pack contains all of the Office 2010 Language Packs. Individual Office 2010 Language Packs, the Office 2010 Multi-Language Pack, and Office 2010 Proofing Tools Kit are available for purchase in major retail stores and their Web sites, and also through Microsoft volume licensing programs.