title: Convert XLSX to CSV correctly
body: <p>This is a problem very much like the one described <a href="https://superuser.com/questions/240858/convert-a-column-into-a-comma-separated-list">here</a>. However I need to do it horizontally, and my problems occur with the <em>date</em>. I'm on a Mac.</p>
  
  <p><a href="http://f.cl.ly/items/1P2p3x001t3z1G2y1b2z/Sk%C3%A4rmavbild%202012-08-16%20kl.%2016.45.59.png" rel="nofollow noreferrer">This</a> is a picture of my .xlsx document. I have lots of entries like the ones in the first three rows, and I want to convert them into CSV as the last three ones. But my problem is this:</p>
  
  <ul>
  <li>2012-08-16 (in A1) becomes 41137 (in A4) </li>
  <li>My session from 08:00 to
  09:00 is 01:00 hour long (see H1 and I1 and J1) becomes a mess –
  ,0,333333333333333,0,375,  </li>
  <li>My session from 09:00 to 10:00 has the
  same problem as the one above, only that the messy numbers are
  different.</li>
  </ul>
  
  <p>My end goal is to export my .xlsx time sheet into <a href="http://support.toggl.com/customer/portal/articles/556566-csv-import" rel="nofollow noreferrer">toggl</a> </p>
  
  <p>P.S. Minor problems that may lead to the real ones:</p>
  
  <ul>
  <li>A1 2012-08-16 becomes 16-aug-12</li>
  <li>J1 01:00:00 becomes 01:00 as well as 08:00:00 becomes 08:00 and 09:00 becomes 08:00:00 and so on.</li>
  </ul>