Where do I find my Office for Mac 2011 product key? Once you have your product key, see Activate Office for Mac 2011. Are you using Office on PC? See Using product keys with Office. You probably don't own a legitimate copy of the program) I'm afraid you're out of luck, I believe the licensing information may be stored in the .plist file which is located in /library/preferences. Depending on where you bought Office 2011, you can retrieve the product key from Microsoft using the instructions on their website. Office for Mac 2011 comes with a 25-character alphanumeric activation key that must be entered within 15 days of running any of the suite's applications for the first time. MAC Microsoft Office 2011 Crack Patch Product Key Review MAC Microsoft Office 2011 Crack Plus Keygen Free Download