Finding a product key on a public list often seems like a convenient fix for a lost key, but it carries several significant downsides: re-use MS office licence? - Super User
If you do find a plain text list of 100 keys, you will spend 3 hours typing them in manually, only to find that 99 are blocked by Microsoft's activation servers, and the 100th is for a different edition (e.g., you have Standard, but the key is for Professional). ms office 2007 product key list
Even though Microsoft’s online activation servers for Office 2007 are mostly offline (or unreliable), the robot still works in many regions. Finding a product key on a public list
If you want a legitimate feature instead, pick one of these and I’ll design it: you have Standard