title: Style all date formats in a string in VBA
body: <p>I have an excel spreadsheet and within one column there are various comments for the specific entry (row).
  Each time a user adds a new comment, the current date ("dd.mm.yyyy") is added before the new comment.
  The following example represents one cell with various comments:</p>
  
  <pre><code>29.03.2019: newest comment
  28.03.2019: an older comment
  25.02.2019: more test
  maybe with line break
  12.12.2018: the first comment
  </code></pre>
  
  <p>What I'm looking for is a way to detect all parts in the cell's value (string) which represent a date (formatted like dd.mm.yyy) and set the font style to bold.</p>
  
  <p>So it should look like:</p>
  
  <p><strong>29.03.2019</strong>: newest comment</p>
  
  <p><strong>28.03.2019</strong>: an older comment</p>
  
  <p><strong>25.02.2019</strong>: more test</p>
  
  <p>maybe with line break</p>
  
  <p><strong>12.12.2018</strong>: the first comment</p>