I would assume this is caused by an error in the character encoding. In order to convert the bytes in a file to text, each number is given a character and in order to read and write a file both the program writing and the one reading need to "agree" on a system for this "transformation". With files written by AppGameKit, the program opening the file has no idea what encoding AppGameKit used and has to guess a system. If it guesses correctly the text will appear fine but if it gets wrong, it will come out as nonsense. To fix it you just have to tell the program opening it what encoiding you used, which is most likley Unicode or utf-8. Standard windows notepad has no feature to open with a cirtain encoiding so you will have to use something like notepad++ or sublime
Say ONE stupid thing and it ends up as a forum signature forever. - Neuro Fuzzy