title: How to copy and rename a file in same directory?
body: <p>My folder C:\Downloads\Files\ has 3 .zip files.</p>
  
  <ul>
  <li>test1.zip </li>
  <li>test2.zip</li>
  <li>test3.zip</li>
  </ul>
  
  <p>I need to copy these files into same location and append another extension <code>.dat</code> to the file.</p>
  
  <p>The total files in my folder <code>C:\Downloads\Files\</code> should have 6 files now (3 .zip and 3.dat)</p>
  
  <ul>
  <li>test1.zip </li>
  <li>test2.zip </li>
  <li>test3.zip</li>
  <li>test1.zip.dat</li>
  <li>test2.zip.dat </li>
  <li>test3.zip.dat </li>
  </ul>
  
  <p>Can anyone help me get this done?</p>