public class ExampleFile extends InstanceFile {

    public void registerFile() {
        createFile(Example.getPlugin(Example.class), "example.yml");
        setData();
        saveFile();
    }

    public void reloadFile() {
        reloadFile(Example.getPlugin(Example.class), "example.yml");
    }

    @Override
    public void setData() {
        getFileConfiguration().set("spawn.world", "world");
        getFileConfiguration().set("spawn.x", 0.0);
        getFileConfiguration().set("spawn.y", 100);
        getFileConfiguration().set("spawn.z", 0.0);
    }
}