title: Read file made by another app
body: <p>An application makes a file in <code>data/data/package.name/file.txt</code>. Is there a way for me to open that file from another application (with different package)?
  I tried reading the file the standard way (<code>FileInputStream</code>), but I get <code>EACCES error (no permission)</code>.
  Can I maybe copy the file (withouth opening it) to root directory and then open it?</p>
  
  <p>EDIT: What about changing permission of the file withouth root access?</p>