title: change a list to to column and row in txt file
body: <p><a href="https://drive.google.com/file/d/1pTUn-agl1m1webCkTow6ZOXfZZrahKsq/view?usp=sharing" rel="nofollow noreferrer">a sample file here </a>I have a really heavy text file around 4GB of containing such information. how to change the following format with python to be fast as well</p>
  
  <p>Edited:
  The problem is that inside the text file there are different data in the same format which I am not interested to change their format and move them to a new file (just want to skip them)</p>
  
  <p>Note: this file is a sample of the big file data, in original file they a lot of each bunch.</p>
  
  <pre><code>domain:         x.x.x.x.in-addr.arpa
  descr:          IP xxx SA
  admin-c:        DUMY-RIPE
  tech-c:         DUMY-RIPE
  </code></pre>
  
  <p>to </p>
  
  <pre><code>domain,descr,admin-c,tech-c
  x.x.x.in-addr.arpa,IP xxx SA,DUMY-RIPE,DUMY-RIPE
  </code></pre>