title: NSFileHandle and removing a section of bytes
body: <p>I'm a bit surprised because I believe that there is no obvious way to delete a section of bytes of a file.</p>
  
  <p>That is, suppose I have a file that holds 900 GB, and want to delete 8 bytes starting from offset 54.</p>
  
  <p>Is there any way to do it without passing data to memory?</p>
  
  <p>Thank you!</p>