title: Edit text in an Excel column without deleting the current content
body: <p>I'm at work and this is my first time using Excel.
  I have the following question:
  When I want to edit text in a column, I can press Enter or Spacebar to do so without using the mouse.
  However, this way the whole text gets deleted.</p>
  
  <p>Now, I want to edit text while keeping the text in the current column.
  (And, yes, I'm definitely too lazy to use the mouse.)</p>
  
  <p>Thank you very much, everybody. :)</p>