title: Excel Chart with Text data range
body: <p>I have a table like</p>
  
  <pre>
   ________
  | S1 | S2|
  ----------
  | a  | b |
  | b  | c |
   --------
  </pre>
  
  <p>And I need to display this on a scatter plot Chart (or anything else) where the Y-axis has data range (a,b,c) and X-axis has data range (S1,S2), similar to</p>
  
  <pre>
  c |       x
  b |  x    x
  a |  x   
    |_________
      S1   S2
  </pre>
  
  <p>Please help. I can't find any documentation for text-range axis anywhere</p>
  
  <p>Thanks a lot</p>