Any reason behind hyphens in a GUID?
<p>Just when I generated a GUID, I found some hyphens in between the character and also at specified intervals</p>

<pre><code>8b55fec7-c987-4e7b-abad-16e5aaea9b53
</code></pre>

<p>Is there any story behind this?</p>

<p><strong>Note:</strong> My intention is to remove those hyphens as I am adding this GUID to a filename and our filename should only be aplhanumeric.</p>
