I lost my validation code for office 2007.

Hello friends,
I lost my validation code for office 2007. I am bothered if where did I put the copy of my Microsoft office 2007 package. How can I recover those codes? I am worried that I cannot use anymore the application for there are so many works to do using office 2007 application. I wish you could help me.
Thanks and Regards,
Emaily Rawa.
