In order to get a list of clients, we’ll go to: 

Inf. and Statistics --> Customers

From clients, we will be able to see that a drop-down opens up with several options: 

Clients with address, with magazine, with identifier, with observations, with bank account, with credit card... 

From all of them we must choose the option that best suits what we seek.

Once inside some option of the dropdown, we will be able to see a series of options and filters when looking for our clients; for example: date of high and low, age, sex etc. Then we will press the option get report (to get the report on screen) or on the contrary, if we want to work with it, we can export it to Excel.