Do not buy Microsoft Office for Mac from these people. You are forced to remove any existing Office applications you have on your Mac before trying to install their version. All your archived emails are gone forever when you do that. When I contacted support for a refund they made me jump through hoops and try to install it again. A full page of instructions was sent, including downloading the .pst file which holds my archived emails. There is NO .pst file because StactSocial told me I had to uninstall my current version of Office for Mac. There were also instructions on how to fool Mac security into accepting their version of Office as being safe. A giant kludge and a giant scam.