[PHP Excel] - Generare e salvare su server file Excel

[cichity74]

Sono riuscito a generare un file Excel tramite questo script:
lo script tramite header genera e da in download il file, io vorrei salvarlo sul server

<?php
ob_start();
// ..
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 ) {
    $L = strlen($Value);
    echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
    echo $Value;
    return;
}
// ..
    $filename = "Test";
// ..
// Send Header
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Content-Type: application/force-download");
    header("Content-Type: application/octet-stream");
    header("Content-Type: application/download");;
    header("Content-Disposition: attachment;filename=$filename.xls ");
    header("Content-Transfer-Encoding: binary ");
// Open XLS
    xlsBOF();
// ..
    xlsWriteLabel(1,0,"Scr A2");
    xlsWriteLabel(5,0,"Scr A6");
    xlsWriteNumber(5,1,"33.333");
// ..
// Close XLS
    xlsEOF();
    exit();
// ..
?>

cichity74