I have created Libre Office (or openoffice) based forms and pivot tables to present data from the database.
It shows menu usage, daily overview of tickets and a Tax report split is different tax rates suited for the dutch regulations.
It consists of forms, calc sheets and a number of database views.
I can make them available
Sure, changed most of the reporting for the system from Libre Office to Oracle APEX which has more possibilities. The only report I use Libre office for is the daily tax overview. APEX is used on an XE database using export import.