Export list from all customers who bought product A etc.

Hello,

What I thought there would be a mod for this ended up in writing a topic over here. A question from a customer:

"I need to export all customers who bought product A and how often"

In other words: they need an export tool in which they can enable certain products, who bought them and how often.

It seems, after several hours searching the internet not a single mod that can (easily) do this.

Any help/direction/link would be appreciated.

Kind regards,

Kec