title: Load Excel Combobox when the excel is opened
body: <p>I have Combo box in Excel and I have following VBA code. But now working when the excel is opened.</p>
  
  <pre><code>Sub worksheet_activate()
  mapping.clear
  mapping.Additem "File to Table"
  mapping.Additem "Table to File"
  End Sub
  </code></pre>
  
  <p>Now , tell me how to load the combobox automatically when the excel is opened.</p>