save Levelitems to a txt file

Unity Engine
1

Hello
I saw the Video from Quickfingers here is the Video
http://blogs.unity3d.com/2011/05/03/london-unity-user-group-luug-meet-v1-0/
Part3 at the End from the Video he shows his own Leveldesigner and save Gameobjects to a txt File as a Level so he can load the Level in the Game.
We can i made this?
Please help me.

Thx
StoRmtec

2

You don’t need to save to text file if you don’t want to. PlayerPrefs or saving to XML is used often. PlayerPrefs is real easy thought.

3

Okay but i don´t know how that realiseable. Wenn i load the Level that th Prefabs are on the same Position as in the Editor?