How to extract guest database for marketing in eZee Burrp Backoffice 7.0?

Location:
eZee Burrp Backoffice >> Configuration >> Masters >> Guest Database

Pre-requisite:
eZee Burrp Backoffice >> Configuration >> User Configuration >> User Operation >> Edit user >> Privilege >> Master Configuration

How to access:
You have extract all guest database contact into excel file to send promotions offers