You will need to reinstall the 64-bit versions of these tools, if possible. If you are unsure whether you meet the requirements or the Microsoft recommendations above, or are concerned about compatibility issues with other programs or plug-ins, UITS highly recommends you install the 32-bit version. Unless you have a need for some of the benefits of using the 64-bit version (as noted in the article), UITS recommends that you install the 32-bit version. To run the 64-bit version, you need 64-bit-capable hardware and a 64-bit version of Windows 7. You can disable this on a per-folder basis or for all folders at once.
Office 2010 uses the XML-based file format introduced in Office 2007.
