Can the data in the groov trend graph be exported?

Can the data in the groov trend graph be exported? Produce a Execl file.
In the same way, can the trend graph in PAC Display be exported?

Yes.

The Forum search works well for a lot of questions like this.
There are several solutions, here is the search; Search results for 'groov trend' - OptoForums

This one might be what you are looking for (found via the forum search);