PHPExcel: Change Font Size

With getFont()->setSize(), you can set the font size of one or several cells.

As an example, the following code we are setting the text in cell A1 to font size 18:

$objPHPExcel->getActiveSheet()
            ->getStyle("A1")
            ->getFont()
            ->setSize(18);

If we would like to adjust multiple cells at the same time, we can also define a larger range:

$objPHPExcel->getActiveSheet()
            ->getStyle("B1:B10")
            ->getFont()
            ->setSize(18);

For instance, here, we are selecting the cells B1 to B10, with which we are setting the font size in some fields of the second column.
2015-06-01 at 18:35