title: Comparing two columns in two different excel sheets
body: <ul>
  <li>I have 2 excel sheets (sheet1 and sheet2)</li>
  <li>Sheet1 has 10 columns, sheet2 has 20 columns (no:of rows are same )</li>
  <li>Sheet2 contains all the columns that sheet1 have</li>
  <li>Now, compare 12th column of sheet2 with 7th column of sheet1 </li>
  <li>This should result in another column names 'Matched?' in any of the sheet (lets say sheet 2)</li>
  <li>This 'Matched?' columns should have 500 rows with values 'Yes' if matched (or) 'No' if not matched.</li>
  </ul>
  
  <p><strong>Note:</strong> Kindly please start explaining from the scratch about the provided VLOOKUP() function because i don't know about it. </p>