How to organize the level map?

Question

Unity

I have a game like 3 in a row, of course, for each room you need a "map" where what should be (which prefab, what properties it has).
How to organize the level map?
I think there should be a separate folder in which there will be a list of files (level1, level2....)
What should be the structure of these files? Do not create a separate class for each level ...
If this file contains an array, then how to request it ...
In one game I saw there is a level1.map file (I just couldn’t open it), that is, you can somehow set such files and a level map...
How to do it right?

Answer 1

This can be done through SceneMenedger and LoadScene.