title: how to make excel into dict by xlrd
body: <p>I have the following data in Excel:</p>
  
  <pre><code>Column(A) Column(B)   Column(C)
  Header1   
  A         a
            FC           Qty
  select   a1            1
           a2            2
  derived  a3            3
  Header 2
  B         b
            FC          Qty
  select    b1           1
  derived   b2           2
            b3           3 
  </code></pre>
  
  <p>And I need to add this data to a dictionary in the following format (dict with tuples):</p>
  
  <pre><code>my_dict = { A:[a,select:[(a1,1),(a2,2),(a3,3)], derived:[(a3,3)]], B:[b,select:(b1,1),derived:[(b2,2),(b3,3)]]}
  </code></pre>