How do I move my ensemble from Reaktor to Logic?

I'm new to Reaktor and have created several separate ensembles within the software. I want to import them into Logic but i'm not sure how?

I created a track and set Reaktor 6 as the instrument but when i try to 'load recent' all of the files are grey and i can't click or import them.

I want to create a piece in Logic using the ensembles i created.

I know it's basic but i would really appreciate the help as it's for a project!!!

(Whilst i'm here) another thing; I have one rack (saved as .nrkt) but i want to change it to an ensemble (.ens), how do i do this?