Age of Empires 3 Cheats and Hints

Open the sp_yourcityname_homecity.xml file in the My Documents\My Games\Age of Empires 3\Savegame (dont forget to make a back up first) folder, search for .
You will see something like this xx, put in 99 for the xx, save the file, go into the game and play a skirmish. Now you are level 99 !