As upgrade functionality is available from the Anaplan ribbon, it's the simplest way to update to the latest version. This removes the need to uninstall and reinstall the add-in.
Learn how to upgrade the Excel Add-in. Once the upgrade is complete, you can convert workbooks from Series 3 versions of the add-in to be compatible.
The add-in is backward compatible with versions 4.0, 4.1, 4.2, and 4.3.