title: Formula to extract numbers from a text string
body: <p>How could I extract only the numbers from a text string in Excel or Google Sheets? For example:</p>
  
  <pre><code>A1 - a1b23eg67
  A2 - 15dgrgr156
  </code></pre>
  
  <p>Result desired is </p>
  
  <pre><code>B1 - 12367
  B2 - 15156
  </code></pre>