title: How to remove duplicate values from 2 columns in excel using vba
body: <p><br/>
  I am new to Excel VBA Programming. I have one excel sheet with two columns and each column has some email adresses separated by @@. like<br/>
  <strong>ColumA</strong><br/>
  aa@yahoo.com@@bb@yahoo.com@@cc@yahoo.com<br/>
  x@.com@@y@y.com<br/></p>
  
  <p><strong>ColumnB</strong><br/>
  zz@yahoo.com@@aa@yahoo.com<br/>
  aa@yahoo.com<br/></p>
  
  <p>As you can see that both column has two rows, I need 3rd column that should contain all the unique values like<br/>
  <strong>ColumnC</strong><br/>
  aa@yahoo.com@@bb@yahoo.com@@cc@yahoo.com@zz@yahoo.com<br/>
  x@.com@@y@y.com@@aa@yahoo.com<br/></p>
  
  <p>Thanks<br/></p>