Office 2007 serial number

I am right now using Office 2007 on my machine but I am looking to reinstall everything on it, like Office, Excel, etc. But I have misplaced the serial number of this office suite. So, can anyone tell me from where I can see what the serial number is on the software? Thanks.

Download Magical Jelly Bean Keyfinder which is a freeware utility that retrieves your Product Key (cd key) used to install windows from your registry, just search and download it from the net.