Add this function to the PHPExcel_Worksheet_Row class
public function getColumnValue($column = 0) {
if(is_int($column)) {
return $this->_parent->getCellByColumnAndRow($column, $this->_rowIndex);
}
return $this->_parent->getCell($column.$this->_rowIndex);
}
Subsequently, call the new function on each row object returned by the iterator, $row->getColumnValue($column)->getValue();
, where $column is either the column index or the column alphabet.
EDIT: The PHPExcel_Worksheet_Row class is in the file row.php in directory Classes->PHPExcel->Worksheet.