title: Convert MAC Address Format
body: <p>I just wrote a small script to pull hundreds of MAC Addresses from a switch for comparison, however they are formatted as "0025.9073.3014" rather than the standard "00:25:90:73:30:14".</p>
  
  <p>I am stumped on how to convert this, where the best I can come up with is exploding these into pieces at the ".", then breaking them down further into 2 pieces each, then rejoin all parts with ":" separators.</p>
  
  <p>I am okay with hacky methods but this is bothering me because that is a very poor approach. Is there any way to perform this better?</p>