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<?php
use PhpOffice\PhpSpreadsheet\IOFactory;
require __DIR__ . '/../Header.php';
$spreadsheet = require __DIR__ . '/../templates/sampleSpreadsheet.php';
// Write temporary file
$filename = $helper->getTemporaryFilename('xls');
$writer = IOFactory::createWriter($spreadsheet, 'Xls');
$callStartTime = microtime(true);
$writer->save($filename);
$helper->logWrite($writer, $filename, $callStartTime);
// Read Xls file
$callStartTime = microtime(true);
$spreadsheet = IOFactory::load($filename);
$helper->logRead('Xls', $filename, $callStartTime);
// Save
$helper->write($spreadsheet, __FILE__);