A Cheat.db file is essentially a text-based list of specific memory addresses and values. When a player activates a cheat, the application forces the game's random-access memory (RAM) to retain a specific value. For example, if the memory address for "Health" is set to a constant maximum value, the character becomes invincible. The "download" aspect refers to obtaining a pre-compiled list of these addresses, saving the user the arduous task of finding and testing these codes themselves. It is a plug-and-play solution for altering the fundamental rules of the software.