while(rowITR.hasNext())
{
row = (XSSFRow)rowITR.next();

cellITR = row.cellIterator();

while(cellITR.hasNext())
{

cell = (XSSFCell)cellITR.next();

switch (cell.getCellType()){

case XSSFCell.CELL_TYPE_STRING:

    if((cell.getReference().startsWith("A")&&(cell.getRowIndex()>1)))
    {
        inSheet=cell.getStringCellValue();

    }

    if((cell.getReference().startsWith("B")&&(cell.getRowIndex()>1)))
    {    inCell=cell.getStringCellValue();
             inLIST.add(inCell);

    }

    if((cell.getReference().startsWith("C")&&(cell.getRowIndex()>1)))
    {
      outSheet=cell.getStringCellValue();

    }

    if((cell.getReference().startsWith("D")&&(cell.getRowIndex()>1)))
   {
         outCell=cell.getStringCellValue();
             outLIST.add(outCell);    //


    }


break;
case XSSFCell.CELL_TYPE_BLANK:

break;


}

}

}

-----------------------------------------------------------------------
sheet-info.xlsx

 <http://i.stack.imgur.com/5ivsd.gif>