title: how to find first non zero element in a column and realte it with an element of another column in Ms Excel?
body: <p>I have a matrix with two columns in excel datasheet.
  The first column is a date and the second is a numerical value.
  I want to find the first non zero element of column 2 and as an output the relevant value of column 1.</p>
  
  <pre><code> A        B
  0.0    12/5/2014
  0.0    12/8/2014
  1.3    12/12/2014
  0.0    12/14/2014
  </code></pre>
  
  <p>the answer should be : 12/12/2014</p>