Editing these files manually with a text editor like Notepad is nearly impossible because they are encoded in a format called "Marshal". Instead, use one of these specialized tools:
RPG Maker VX Ace uses the Ruby scripting language and a specific data structure for saves. An editor allows you to modify the $game_ global variables that store the player's progress. rpg maker vx ace save editor
Some advanced editors allow players to change the coordinates of the player character, effectively allowing them to "teleport" across maps. Use Cases: Testing vs. Cheating Editing these files manually with a text editor
If a standard editor cannot read the file, you can use a (HxD, 010 Editor). you can use a (HxD