The August non-security Microsoft Office updates were released by Microsoft that contain improvements and fixes for the MSI-based editions of Office 2013 and Office 2016. The updates are available for download via Microsoft’s Update service or from the Download Center for manual installation. These updates do not apply to the Click-to-Run versions of the apps, such as Microsoft Office 365 Home. Some of the updates may require a computer restart to get certain improvements you need to install KB4475541 at the same time.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-august-2019-office-updates-with-fixes-improvements/