And all these six variants of Microsoft Office 2011 for Mac were downloaded from the various Microsoft market places. In the month of September and in the year of 2006 the USD prices of Microsoft Office 2011 for Mac was released by certain retail channels of the internet as well as on the radio. So, even if you did find an OS Office download, you would still need a valid OS product key to install and use Microsoft Office 2011 for Mac.Įarlier all the six versions of Microsoft Office 2011 when they were launched they were only supposed to launch these all in the USD prices and then after they used to launch in the Indian market in the currency of the Indian rupees. This unique number is required during the installation of Microsoft office os. In many ways, what you actually pay for when you legally purchase a copy of Microsoft Office is the product key (sometimes referred to as a CD key or key code, or incorrectly as the serial number.