title: Insert "-" at a specific position using VBScript
body: <p>I have a file which has multiple lines.</p>
  
  <ul>
  <li>It is required to have "-" after 8th position in every line. </li>
  <li>I can read lines with "-" at 9th position, but I am not able to write "-" at the 9th position if it is not there.</li>
  </ul>
  
  <p>Any help would be really appreciated. </p>