Office 2010 will also contain 32 and 64-bit version

We know that as a result of differences in the larger system, Windows system is divided into 32-bit and two 64-bit CD-ROM, and to the Office, the Microsoft has chosen two versions of the calculation system package together.
Ars Technica has provided some valuable details of display, said Microsoft will most likely be included in Office 2010 with a DVD.

Ars Technica posted an error message which reads: "If you want to install 64-bit Office, need to uninstall all the Office products 32, and then run 64-bit folder Setup.exe."

This means that 32 and 64-bit version will be in the form of a folder with a separate CD-ROM and a CD-KEY Topsy on the two versions at the same time.