Windows Office 365 ProPlus Installation Guide PLEASE NOTE: Transitioning to Device Based Activation post-installation is available to departmental IT admins. Available for Apple, Android and Windows Mobile phonesĮMPLOYEES: Need an earlier version of Microsoft Office? Visit the ITS Software Store to purchase Office 2016 Pro Plus.Get free downloads of Office 365 ProPlus-including Word, Excel, PowerPoint and more-on up to fifteen personally-owned devices: five computers, five tablets and five phones. Enjoy your free subscription as long as you’re a current employee or active student enrolled in classes.