Microsoft today announced that the "On July 11, 2011, Office XP will exit the Extended Support period." What does "end of support" mean? It means Microsoft will no longer provide public fixes for the Office XP release. Automatic Updates that ship on "Patch Tuesday" will be discontinued. There'll be no effect on installed software; products will still continue to function.
What options do Office XP users have?
"Microsoft recommends that customers keep their systems secure by upgrading to the latest, supported product and/or service pack, such as Office 2010. Office 2007 SP2 and Office 2003 SP3 are also supported for the duration outlined in the Support Lifecycle Product Database.
For Premier Support customers, a Custom Support program is available. The support team has posted a useful web page about available options for retired product support. They've also published a good FAQ page to explain some of the background on the support policy, explains Microsoft.
The chart above reflects the end of support for the main Office XP Release versions:
More Info: Microsoft Support