Editing a game file is quite an easy task but very risky. Making a minor mistake can create errors and eventually ruin the proper running of the game and may harm the computer as well. Each and every game has thousands of file. To select the right editing file, you have to refer the instruction manual that comes with the game. If no information is given in the manual, you can check the internet for its proper file. After you've found the right editing file, first thing is to make a backup of that file. Copy the file and paste it on your desktop or wherever you can easily access it. After that, start with the editing. You can change the commands in the file or enter a new one. Save the file and start the game. If the right commands are entered and those commands support the game, you should not have any problems with the functioning of the game.