Originally posted by Showit:

My save file got ruined and now the progress of my world is gone, i save my progres though cloud save and i want to use a previus save. The problem is that i dont know exatcly how to do it, once i download the save i dont know in what part of the folder i have to put them.

Good News! Entering the game there is a option to "manage files" and with that i could reload my previous world, is all solve ;)