Map file

Where can i read about this Quake’s map format? Or maybe you know, what this row should mean :

( 11 8 154 ) ( -12 16 156 ) ( 12 16 154 ) radiant/notex 0 0 0 0.500000 0.500000 0 0 0

Thanks

Try this.
http://www.flipcode.com/tutorials/tut_levedit.shtml

[This message has been edited by Brent Fogarty (edited 08-22-2002).]