title: Excel: suppress if cell above has the same value?
body: <p>Is it possible in Excel to suppress values in a column when the cell above has the same value?</p>
  
  <p>I want something like this :</p>
  
  <pre><code>A            1234
               2345
               3456
  B            4567
  C            5678
               6789
  D            7890
               8901
  </code></pre>
  
  <p>where the 2 cells under A are actually A, but hidden.</p>
  
  <p>Ideally I'd want this in some sort of formula, because the data comes from a mysql merge and it has to do this automatically...</p>