You will need to enter a username and password possessing administrator privileges to complete the installation process, which finishes after activating the license by again logging on to your Office 365 account. After double-clicking the file, a setup wizard walks you through the install. Number of IP addresses: 50,000 Number of servers: 2,500 $2.99/month for a 3-year planOn my Mac, the Office 365 installer package was 1.16GB.
