Is there a simple way to get my MBpro data to my MB Nano SD without the necessary knowledge of complicated IT stuff

In the last hour I've read a lot of topics on this forum, but it's all a bit complicated for me (technical and in English), sorry for that.
But maybe there's somebody out there that can tell me, in simple words and procedures, how to act and get it done.
Nitwit as I am, I even thought the Nano would get the data from my Davis display when installed

Hope to hear from someone, thanks in advance.