Cara Membuat File Excel dengan PHP

<?php
require_once 'pe_part_inventory/inventory.jmd';

$printods = new inventory_pe();

$printmonth = $_REQUEST['printmonth'];
$printyear = $_REQUEST['printyear'];
$printdate = date('Y-m-d');



if($printmonth==1)
{
    $startperiode = "January";
    $endperiode = "April";
} else if($printmonth==2)
{
    $startperiode = "May";
    $endperiode = "Agustus";
} else if($printmonth==3)
{
    $startperiode = "September";
    $endperiode = "Desember";
}

$username     =  $_SESSION['EMcode'];
$judul        =  'InventoryPartPe('.$printmonth.'-'.$printyear.').ods';

// get section dari data master order no section
$ressec = $printods->get_section_pe();
$numsec = mssql_num_rows($ressec);


header("Pragma: public");
header("Expires: 0");
header("Cache-Control: private");
header('Content-type: application/vnd.ms-excel');
header("Content-Disposition: attachment; filename= $judul");





function xlsBOF() {
    echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
    return;
    }

    // Function penanda akhir file (End Of File) Excel

    function xlsEOF() {
    echo pack("ss", 0x0A, 0x00);
    return;
    }

    // Function untuk menulis data (angka) ke cell excel

    function xlsWriteNumber($Row, $Col, $Value) {
    echo pack("sssss", 0x203, 14, $Row, $Col, 0x0);
    echo pack("d", $Value);
    return;
    }

    // Function untuk menulis data (text) ke cell excel

    function xlsWriteLabel($Row, $Col, $Value ) {
    $L = strlen($Value);
    echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
    echo $Value;
    return;
    }

xlsBOF();
xlsWriteLabel(0,0,'PE Parts Inventory');
xlsWriteLabel(0,1,"Period : $startperiode - $endperiode $printyear");

if ($numsec > 0)
{
    $noBarisCell = 1;
    while ($rowsec = mssql_fetch_object($ressec))
    {
        //get data inventory per section
        $cond = " and substring(riorderno,1,2) in (select PO_Name from jstpedb..tbmst_parentorder with(nolock)
                    left join jstpedb..tbmst_mfgrequester with(nolock) on po_mfgid = mfgr_id
                    where PO_OwnerSection = '$rowsec->po_ownersection')";
        $q = $printods->inventory_data($printmonth,$printyear,$cond);
        $res = mssql_query($q);
        $num = mssql_num_rows($res);
        if ($num > 0)
        {
         
            $noBarisCell++;
         
            xlsWriteLabel($noBarisCell,0,$rowsec->po_ownersection);
            xlsWriteLabel($noBarisCell,1,'Print Date :'.$printdate);
            $noBarisCell=$noBarisCell+2;
         
            xlsWriteLabel($noBarisCell,0,'No');
            xlsWriteLabel($noBarisCell,1,'PartID');
            xlsWriteLabel($noBarisCell,2,'Status');
            xlsWriteLabel($noBarisCell,3,'Order No');
            xlsWriteLabel($noBarisCell,4,'Equipment Code');
            xlsWriteLabel($noBarisCell,5,'Drawing No');
            xlsWriteLabel($noBarisCell,6,'PartNo');
            xlsWriteLabel($noBarisCell,7,'PartName');
            xlsWriteLabel($noBarisCell,8,'Balance Stock');
            xlsWriteLabel($noBarisCell,9,'Actual Stock');
            xlsWriteLabel($noBarisCell,10,'Remark');

         
            $i = 0;
            while ($row = mssql_fetch_object($res))
            {
                $i++;
                $noBarisCell++;
                xlsWriteLabel($noBarisCell,0,$i);
                xlsWriteLabel($noBarisCell,1,$row->riidtc);
                xlsWriteLabel($noBarisCell,2,$row->ristatus);
                xlsWriteLabel($noBarisCell,3,$row->riorderno);
                xlsWriteLabel($noBarisCell,4,$row->riequipcode);
                xlsWriteLabel($noBarisCell,5,$row->ridrawno);
                xlsWriteLabel($noBarisCell,6,$row->ripartno);
                xlsWriteLabel($noBarisCell,7,$row->ripartname);
                xlsWriteNumber($noBarisCell,8,$row->riendstock);
                xlsWriteLabel($noBarisCell,9,'');
                xlsWriteLabel($noBarisCell,10,'');

             
            }
             $noBarisCell++;
       
        }

    }
}

$noBarisCell++;
xlsWriteLabel($noBarisCell,0,'Noted : ');
xlsWriteLabel($noBarisCell,1,'Data yg ditampilkan ada data yg pada transaksi per period yg masih ada balance stock dan tidak ada stock');
xlsEOF();
exit();
?>