title: Modify part of border in Google Sheet
body: <p>In this sheet which I have inherited I need to modify only the highlighted horizontal border in the pic, whilst keeping the other borders.</p>
  
  <p><a href="https://i.stack.imgur.com/znvSd.png" rel="nofollow noreferrer">Modify only border highlighted</a></p>
  
  <p>I feel really embarrased to admit that I know how to do this in a horrible tool called Excel, but am unable to figure out how to do it in GS :-(</p>