Flash AS3 AIR : Create Plain Text File

as3-create-text-file.as

// maybe need some other imports also, add if needed
import flash.filesystem.File;
import flash.filesystem.FileStream;
import flash.filesystem.FileMode;

// saves file to C:\Users\username\AppData\Roaming\APPID\Local Store\
var myfile:File = File.applicationStorageDirectory.resolvePath("hello.txt");

var mystring = "Hello World!";


// create file
fileStream.open(myfile, FileMode.WRITE);

// output to it
fileStream.writeUTFBytes(mystring);

// close
fileStream.close();