You must sign in to the Excel Add-in before you use it.
For customers on the Canada Prod environment, you'll need to disable Universal Login or use Anaplan for Microsoft 365. You can sign in with your Anaplan credentials or SSO, if your organization uses it.
If you require access to multiple Anaplan environments, choose between authentication settings to access them more easily. You need to sign out before you can sign in again with a different authentication setting.