Buy Office 2010 & Office for Mac 2011 and Activate today – Free Upgrade to Office 2013
http://office.microsoft.com/en-sg/offer
- Eligibility Period – You must purchase, install, and activate your Office 2010 or Office for Mac 2011 product by April 30, 2013.
- Redemption Period – from January 29, 2013 to May 31, 2013
Windows XP SP3 and Office 2003 (Support ends 8 April 2014)
http://www.microsoft.com/en-us/windows/endofsupport.aspx