I know that Report Types are hidden from Users who don't have access to the underlying objects. Is there a way to block Users from building new reports with standard Report Types?

**Use Case:** We have data in Salesforce that folks are welcome to access in the interface, but we don't want them to be able to easily export that data to excel or csv. My thought it to make Custom Report Types exposing only the fields I want them to be able to manipulate freely, but I don't know how to block their access to the standard Report Types, if that's even possible.

**Clarification:** This isn't just about export, and you can ignore that example if you want. I have a group of employees whom I'd like to empower to create reports while simplifying their experience by only presenting the report types they will need to use.