Follow the instructions to begin the installation.Log into your Mercer email at, click the Office 365 link located in the upper-left corner of the page, and click Install Office and select Install Office apps.Install Microsoft Office on a Windows computer Install MS Office on iOS (iPad, iPhone.).Install MS Office 2016 on Mac (OS X 10.10 and above).The latest versions of Microsoft Access, Excel, OneNote, Outlook, PowerPoint, and Word can be installed on up to five PCs, Macs, or mobile devices. Mercer partners with Microsoft to offer the latest Office suite to all active Mercer employees and students free of charge.