title: excel : How to delete rows based on formulas
body: <p>I'm looking for a way to delete all rows whose are based on a formula.<br>
  Indeed, I have a large Excel document which contains many rows and some of them are based on the value of other ones</p>
  
  <p>Example :
  <code> Recipients </code></p>
  
  <pre><code>   A |   B    |  C
     ------------------
     1 | salt   | bread
     2 | sugar  | ham
     3 | oil    | bread
     4 | salt   | bread
     5 | salt   | bread
     6 | sugar  | ham
     7 | oil    | butter
     8 | salt   | butter
     9 | salt   | butter
    10 | sugar  | ham
    11 | oil    | bread
    12 | oil    | ham
  </code></pre>
  
  <p>Some of the column doesn't contain the exact content but contain duplicate of the other rows.<br>
  In this example, <code> ROW 5 CELL B  </code> contains an <code>=B4</code> formula.</p>
  
  <p>Is there any way to delete all the rows that contains this kind of set up and do not repeat the human checking of each row ?</p>
  
  <p>Thanks for your time and help :) </p>