Can't export report from only one customer

Can't export report from only one customer

When I do a report and I come to export using CSV or XLS, it gives me ALL my customers. On top of that, you you export a line for every item.

All I want to do is get the all the following invoice data from one specific customer:
  • Date of invoice
  • Total amount
I can't believe how much time I'm wasting trying to get this basic information just so I can generate a chart...