title: Recovering a corrupted database backup made in MyBB (sql.gz format)
body: <p>Me and my friend were running a forum powered by MyBB. Unfortunately, the friend wanted to play with the domains and, well, happened to delete the database without making a backup first.
  The problem lies in my old backup file, made on 27th Nov using MyBB's "Database backup" module. The archive name is: </p>
  
  <blockquote>
    <p>backup_8929a23179fqloNMLZhTyY4DIlJlydWBTjsoHh2kpptQE8tUKZO9I5EIeCHAugPS.sql.gz </p>
  </blockquote>
  
  <p>and I remember trying to download it 3 times, before ending up with an .sql.gz file.
  Unfortunately, all the tools report it as corrupted. Running </p>
  
  <pre><code>gunzip -d 1the_bad_bad_backup.sql.gz
  </code></pre>
  
  <p>on it returns</p>
  
  <pre><code>gzip: 1the_bad_bad_backup.sql.gz: not in gzip format
  </code></pre>
  
  <p>If it's not in GZIP format, then... what format is this compressed in? It definitely isn't just an .sql file renamed to .sql.gz (that would be stupid, but happened to me once), as renaming it to the_bad_bad_backup.sql and opening it in nano jumbles the whole file. Although, it says</p>
  
  <pre><code>[ Read 109826 lines (Converted from DOS and Mac format) ] 
  </code></pre>
  
  <p>at the bottom upon opening it. Still, the file is completly unreadable.</p>
  
  <p>Is there any way to repair the archive?</p>