Save Generated Map

Hello everabody,

i created a procedual generating world with this tutorial:

And now i want the player to save the world and not always get a new one. I have already tried a lot. I am desperate. I already tried to save the elements in arrays. But somethings did not fit there. Google and YouTube do not help me either. Everyone can create procedural maps, but no one shows how to save them. :frowning: