title: Grails excel-import plugin Numbers populated as real with exponent
body: <p>I am trying to import a ms-excel 2007 sheet using excel-import plugin. It was simple to integrate with my project and I found it working as expected until I noticed that the number values in the cells are populated as real numbers with exponent. 
  For example if the cell contains value 9062831150099 -(populated as)->9.062831150099E12 i.e.</p>
  
  <pre><code>         A              |
      _____________________
      Registration Number |
      ____________________
      9062831150099
  </code></pre>
  
  <p>Is populated as: <code>[RegNum:9.062831150099E12]</code></p>
  
  <p>Anyone could suggest me how I can change this representation back to its original format keeping its type as number?</p>