See Download and install the Add-in to download the latest version of the PowerPoint Add-in.
When you update the add-in, we recommend that you first uninstall the add-in, then install the latest version.
Note: Some virus detection software may flag the PowerPoint Add-in installer as containing malicious code when they detect the Add-in connects to a remote site. This is a false positive. The PowerPoint Add-in contains code that allows it to connect to the Anaplan website and to execute server-side scripts.