Following this post - we are also faced with the same issue. 

@KTheJoker- when I'm connecting and trying to expand a catalog, I do see the query fire off in the SQL Warehouse query history but in Excel nothing is returned. I can see the schemas/tables/views when connecting from Power BI and Tableau but not Excel. 

Is there any other configuration on the Databricks side to be done in order for it to work for Excel? Another team owns the Databricks config/setup but if I can suggest a solution for them to solve this, that would be great. 

Thanks!