<?php
require $_SERVER['DOCUMENT_ROOT'] . '/spreadSheetReader/SimpleXLSX.php';
require $_SERVER['DOCUMENT_ROOT'] . '/spreadSheetReader/SimpleXLSXGen.php';
function read_xls_file($filename){
    $fileContent = [];
    if ($xlsx = SimpleXLSX::parse($filename)) {
        $fileContent = ($xlsx->rows());
    } else {
        echo SimpleXLSX::parseError();
    }
    return $fileContent;
}


function write_xlsxFile($filename, $data) {
    $xlsx = SimpleXLSXGen::fromArray($data);
    $xlsx->saveAs($filename);
}