 <p>Looks like you are missing a few jar's.</p> <p><a href="http://poi.apache.org/overview.html" rel="nofollow">http://poi.apache.org/overview.html</a></p> <p>You need:</p> <pre><code>poi-version-yyyymmdd.jar commons-logging.jar commons-codec.jar log4j.jar poi-ooxml-schemas-version-yyyymmdd.jar xmlbeans.jar stax-api-1.0.1.jar dom4j.jar </code></pre>