sav files (old and new) honestly i dont remember what software i used to compare a hex dump of files, so you might wish to google and i dont think you will find the exact one that i used since it made in early 2000s or late 90s. do some actions (get or use gold) save your game again and compare both. sav file before launching the game lets say i had 100 gold or something in that save, then i go and launch the game. sav files can opened in excel program from microsoft office. sav for some reasons, probably due programming languages or encryption.
sav files can be decrypted using some specific programs, (honestly i didnt try this and i heard it from a friend, but its possible since i know some programs that can detect some of encryption methods) for pc games it can be in any programming language and for android most likely java or c++ and c.sav files can be compressed and you need to de-compress them using 7z or any other software. sav files and i had success to modify some, so here is everything i know and used.
