Hi Daniel, you are correct, you cannot get direct access to the Liberty Converse database, but we do include a number of APIs, which you can indeed use to access data to create reports in 3rd party apps like Excel and Power BI (among many other things).
I wrote an article about how to do just this, which you can access here. Using the Liberty Converse Report API - Liberty Converse and Connect Advice - Netcall Community
Let us know if you have any questions.
Kind Regards,
Jonathan Redsell