title: Mac Terminal unzip zip64
body: <p>I have Mac OS 10.9.5. I have downloaded a large zip file off of the internet that the owner changed to a zip64 for me so it could work. I try unzipping the file with <code>unzip SNPsnap_gcan_3_500.zip</code> but I get the following error </p>
  
  <p><code>End-of-central-directory signature not found.  Either this file is not
    a zipfile, or it constitutes one disk of a multi-part archive.  In the
    latter case the central directory and zipfile comment will be found on
    the last disk(s) of this archive.
  unzip:  cannot find zipfile directory in one of SNPsnap_gcan_3_500.zip or
          SNPsnap_gcan_3_500.zip.zip, and cannot find SNPsnap_gcan_3_500.zip.ZIP, period.</code></p>
  
  <p>I have no clue how to unzip this file. Any thoughts?</p>