From GameBrew - a wiki dedicated to Video Game Homebrew.
This is a tool to assist with making your cheat file for Rinnegatamante's rinCheat while you search/find new cheats with his handy plugin.
rinAssistant works by taking the Game ID that you enter and generating/editing a new text file depending on if you have an instance for your Game ID or not. If you already have a cheat file with the Game ID, the tool will simply add your new cheats to it without breaking the formatting. All with a simple click of a button!
Here is an example of what the final output will look like with multiple cheats(I used two of the same as an example)