下载phpexcel文件，地址：phpexcel.codeplex.com/
代码示例
require_once 'phpexcel/Classes/PHPExcel.php';
require_once 'phpexcel/Classes/PHPExcel/IOFactory.php';
require_once 'phpexcel/Classes/PHPExcel/Reader/Excel5.php';
$objReader = PHPExcel_IOFactory::createReader('Excel5');//use excel2007 for 2007 format
$objPHPExcel = $objReader->load($filename); //$filename可以是上传的文件，或者是指定的文件
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow(); // 取得总行数
$highestColumn = $sheet->getHighestColumn(); // 取得总列数
$k = 0;
//循环读取excel文件,读取一条,插入一条
for($j=2;$j<=$highestRow;$j++)
{
$a = $objPHPExcel->getActiveSheet()->getCell("A".$j)->getValue();//获取A列的值
$b = $objPHPExcel->getActiveSheet()->getCell("B".$j)->getValue();//获取B列的值
$sql = "INSERT INTO table VALUES(".$a.",".$b.")";
mysql_query($sql);
}