header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
//header("Content-type:charset=utf-8");
header("Content-Type: application/download");;
header("Content-Disposition: attachment;filename=".$post['time1']."-".$post['time2'].".xls "); 
header("Content-Transfer-Encoding: binary ");
 
xlsBOF();
xlsWriteLabel(1,0,"文字测试");
xlsWriteNumber(2,0,123);
xlsEOF();	
function xlsBOF() {
	echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
	return;
}
function xlsEOF() {
	echo pack("ss", 0x0A, 0x00);
	return;
}
function xlsWriteNumber($Row, $Col, $Value) {
	echo pack("sssss", 0x203, 14, $Row, $Col, 0x0);
	echo pack("d", $Value);
	return;
}
function xlsWriteLabel($Row, $Col, $Value ) {
	$Value = iconv("UTF-8", "gb2312", $Value);//由于网页编码是UTF-8,需要用iconv转码.否则乱码
	$L = strlen($Value);
	echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
	echo $Value;
	return;
}