//Load
Project.Project Data = Chip.Project.ProjectLoader.Load(ProjectFilepath);
Data.Process();
using Chip.Minecraft;
//Opens the world
var World = WorldFactory.Open(Folder, Options);
var area = new Box(0, 0, 0, 25, 25, 25);
//For each subchunk in the area
World.ForEach((sc) => { ... }, area);
World.Fill(Box, BlockFactory.Blocks.Air);
World.Fill(Box, new Block("minecraft:iron_block"));