Open any Office app, such as Word, and create a new document.
Go to File > Account (or Office Account if you opened Outlook).
Under Product Information, choose Update Options > Update Now.
Note: You may need to click Enable Updates first if you don't see the Update Now option right away.
Close the "You're up to date!" window after Office is done checking for and installing updates.
Open an Office app such as Word, then on the top menu, click Help > Check for Updates.
If you don't see Check for Updates, run the latest version of Microsoft AutoUpdate tool, then check for updates again.
Select Automatically keep Microsoft Applications up to date to receive the latest security fixes and feature improvements as soon as they become available, helping your Mac stay protected and up to date.
Click Update to download and install all the available updates.
If you want to learn about the details of each update before installing, click the arrow next to the Update button and review the applications, versions and installation date. Then click Update All or Update next to individual applications.