for ($i = 0; $i < $this->numcols; $i++)
$this->sheet->writeBlank($this->y, $i, $this->formatFooter);
$this->sheet->mergeCells($this->y, 0, $this->y, $this->numcols - 1);
for ($i = 0; $i < $this->numcols; $i++)
$this->sheet->writeBlank($this->y, $i, $this->formatFooter);
$this->sheet->mergeCells($this->y, 0, $this->y, $this->numcols - 1);