title: Parse Excel to JSON
body: <p>I would like to know if is posible parse a excel to json. 
  And if is possible which is the structure of the excel to make it possible.
  There is an application or something??</p>
  
  <p>I have this JSON sructure <a href="http://pastie.org/2760828" rel="nofollow">http://pastie.org/2760828</a>
  And I have to insert 500 products and i would like insert into excel and parse them.</p>