Microsoft Office 2013

Microsoft Office 2013 - Wikipedia, the free encyclopedia

 "Office 2013 is more "cloud-based" than previous versions.
This is notable as the default save location is the user's SkyDrive.

Office 2013 reached RTM milestone on October 11, 2012.[1] Microsoft has planned general availability release for the first quarter of 2013.[1]"

Since Office 2010 there is also a x64 version, besides standard x86 (32-bit).

For "standard" users, the x86 version is recommended.
For users who are going to use Excel for PowerPivot, the x64 version is recommended.