1. Extensions
  2. Excel Add-in 3.4
  3. Download and install the Excel Add-in
  4. Find your SSO friendly name

To sign into the Excel Add-in with single sign-on (SSO), you must provide the correct SSO friendly name when you install the Add-in. 

To find out your SSO friendly name, contact your Tenant Administrator.

If you cannot find out who your Tenant Administrator is, contact Support.