There are cases where you want or need to uninstall an Office update. Office 365 installations use a different update than the old Office 2013 & 2016 installations. Where the old installations are a point in time installation, click-to-run always downloads the latest version and then runs the setup. You can revert to an older version but its different than in the past where you could just uninstall an KB update.
Step 1: Check build number and find previous build number
Step 2: The Office 365 installations are automatically updated in the background, we will first need to disable automatic updates. Go in any Office application to: File > Office Account > Update Options > Disable Updates
Step 3: Type the command that applies to your version of Office and/or Windows in a Elevated command prompt (Run CMD as Administrator)
Office 2016 / 2019 / 365 cd %programfiles%\Common Files\Microsoft Shared\ClickToRun\
Office 2013 on Windows 32-bit cd %programfiles%\Microsoft Office 15\ClientX86\
Office 2013 on Windows 64-bit cd %programfiles%\Microsoft Office 15\ClientX64\
Step 4: Revert to the previous version by entering the following command: officec2rclient.exe /update user updatetoversion=<build number>
After hitting Enter there will be an Office update box. You can verify your version by going to your office account in the options menu.
In step 1 we disabled automatic updates. Now that it is disabled you will need to keep an eye on new updates your self. Always re-enable automatic updates at the earliest opportunity.