添加徽标非常简单，请尝试以下代码.

Adding logo is so simple, try below code.

$objPHPExcel = new PHPExcel();
$sheet = $objPHPExcel->setSheetIndexAndTitle(1, "YOUR_SHEET_TITLE"); // first sheet
$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setName('Logo');
$objDrawing->setDescription('Logo');
$logo = base_path() . '/images/logo.png'; // Provide path to your logo file
$objDrawing->setPath($logo);
$objDrawing->setOffsetX(8);    // setOffsetX works properly
$objDrawing->setOffsetY(300);  //setOffsetY has no effect
$objDrawing->setCoordinates('B1');
$objDrawing->setHeight(75); // logo height
$objDrawing->setWorksheet($sheet);