How to Install Microsoft Office 365 on a Local PC
If you have an active Microsoft Office 365 license, you are allowed to install Office on up to five devices. These are the steps on how to install an instance of your Office 365 on your local computer.
On your local computer (NOT in the cloud), sign into portal.office.com using your Office 365 credentials.
Click the Install Office 2016 (or 2013) button in the upper-right.
Follow the very clear, step-by-step instructions and prompts provided by Microsoft.
Once installation is complete, launch Excel and enter your Office email address and password to register and activate Office.
To optimize performance, launch Outlook and enable Cached Exchange Mode, setting it for three months.