I am writing an interactive story. It is a z8 file that is readable by zcode interpreters. I am trying to write a program that embeds the z8 file in an apk. The program will look into the users phone to see if it has twisty, a free zcode interpreter, and notify the user that an interpreter is needed if one is not found. It will take the z8 file and load it onto the sdcard. I need an example or a tutorial of how to load a binary file onto the android sdcard. Thank you for your help and time.