title: how to read unique values from excel column using powershell
body: <p>i would like to read unique email id from a column and assign to a local variable, can anyone assist in doing that </p>
  
  <p>my data will be like </p>
  
  <p><a href="https://i.stack.imgur.com/2wIJD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2wIJD.png" alt="enter image description here"></a></p>
  
  <p>i would like to get unique values from the excel and assign it to a variable using power shell </p>
  
  <p>the variable should hold value in following way Nalin23@bridgestone.com;raj@bridgestone.com;kishan@bridgestone.com</p>