title: Edit .txt file in Hexadecimal values
body: <p>I want to edit a .txt file in hexadecimal values, so far I have not found anything besides this:
  <a href="https://stackoverflow.com/questions/26509916/python-hex-editing-specific-locations-in-a-file">Python-Hex editing specific locations in a file</a>
  But I don't understand a thing there must be an easier way then the solution posted there?
  Also, I want to be able to replace specific hex values with different hex values.
  More specifically I want to change all '85' hex values to 'A5'</p>
  
  <p>I just started learning this and so far I have been able to make a "Hello World" and a console Calculator.
  So Total Newbie at this, don't expect me to understand much.</p>