title: Creating tables in a pptx using Apache POI
body: <p>I'm trying to create some slides with Apache POI and everything is OK, except tables. 
  I use the same code as one of their <a href="http://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xslf/usermodel/Tutorial4.java" rel="nofollow">tutorials</a> and the result is (in my code and excuting the Tutorial) a single,empty and unformatted cell. Also, with this tables OpenOffice is unable to open the file (and Powerpoint shows that single cell).</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks in advance</p>