Microsoft Office 2007 left the end of Extended Support on October 10th, 2017, and no longer receives security fixes. Mainstream Support, which also included bug fixes, ended October 9th of 2012. These dates are for Office installations that included Service Pack 3. Un-updated versions ended Extended Support on January 13th, 2009, Service Pack 1 support ended January 13th, 2010, and Service Pack 2 support ended January 8th, 2013.
The product was launched January 7th, 2007.