A program that converts Steam savefiles into Epic Games savefiles and vice versa for the Batman: Arkham Games
First select which way to convert, Steam-to-Epic Games or Epic Games-to-Steam. Then simply drag and drop files or folders* into the program window and the converted files will be created in the same directory and will be prefixed with "EG_" for Steam-to-Epic and "Steam_" for Epic-to-Steam, you can also specifiy a specific path to a file or folder in the text box.
*If you give the program a folder it'll convert all the savefiles inside that folder. You can also drag and drop multiple folders at the same time and their contents will be converted