title: saving player information in an external file
body: <p><strong>This is the main menu in my first test 2d game in the world of unity :</strong></p>
  
  <p><img src="https://i.stack.imgur.com/rPFqw.jpg" alt="enter image description here"></p>
  
  <p>I want to save high scores and if the player pressed the "Best Scores" button I want to show them the best scores yet ^^ , so I think I need to use an external file to save this type of information and open it at run time ... How ? which kind of files is the best to perform that ? </p>