@Kai Jacob -

Click on the grid/table to select it, then click on the “...” option in the pop-up toolbar, and select export to CSV.

Kiron

Thanks, @Kiron Bondale for your kind support. Unfortunately, it seems, I don’t have this option. Do I might need a different license?

@Kai Jacob - 

Is it possible that the board content copy settings for your team have been limited by your Miro team admin? As long as you are on a paid plan, you would normally have the ability to do exports unless that has been restricted by your administrator...

Kiron

Ran into the same issue, resolved. You have to be owner or co-owner of the board. The same holds for copying stuff out from the board. To be precise, the creator can set the user level for copying board content when the board is shared, and it is defaulted to owners and co-owners:
 

Thank you, @petr_valasek for sharing your tips! We appreciate it.