title: Remove duplicates from column in excel
body: <p>I have a list of number like below in excel. Some numbers are repeated. How can I retrieve only the numbers without a duplicate in the list - in other words make the numbers that are repeated disappear..</p>
  
  <p>so if I have <br><br>
  100<br>
  200<br>
  100<br>
  300<br>
  600<br>
  300<br></p>
  
  <p>All I would want to be left with is</p>
  
  <p>200<br>
  600<br></p>