Count users from AD groups

countThis week I got involved in a project regarding licensing on our remote desktop servers. In phase one I had to do a current situation analysis on how many users that can access our different servers. Since we have 5 different departments the project manager also wanted to have information of how many users the different departments had on each server and a separate excel document for each department with all their users listed. The project manager also hinted that in phase 2 after we made actions and before each license audit we might have to create new reports. Since I am lazy and don´t like to manually create reports I made a function in Powershell  where anyone with the active directory-module can create reports.