This article explains how to update Microsoft Office on Mac. You can check for available updates and install them very easily using the "Help" menu, found on any Microsoft Office product.
Steps
Step 1. Open any Microsoft Office program
You can open Word, Excel, PowerPoint or Outlook. To access an Office program on a Mac, click on the desktop, then click "Go" in the menu bar at the top of the screen and select "Applications" from the drop-down menu.
Step 2. Click on Help
It is located in the menu bar at the top of the screen.
Step 3. Click Check for Updates
It is the third option in the "Help" menu.
If you don't see the "Check for Updates" option in the "Help" menu, click here to download the latest version of Microsoft AutoUpdate.
Step 4. Select "Automatically Download and Install"
It's the third circular button under the question "How do you want to install updates?" inside the Microsoft AutoUpdate window.
Step 5. Click Check for Updates
It is located at the bottom right of the Microsoft AutoUpdate window. This will search for and install the latest Microsoft Office update.