title: Unable to understand working of shiftRows method of apache POI
body: <p>I am working with .xls file i am going to translate(shift) Rows of excell table to specific position.But got unwanted results everytime.I had already gone through documentation of method shiftRows.Unable to understand working of this statement.</p>
  
  <pre><code>sheet.shiftRows(34, sheet.getLastRowNum(), processIndex-4);
  </code></pre>
  
  <p>Sometimes it shifted two rows in Excell Table.</p>