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<?php
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
require __DIR__ . '/../Header.php';
// Create temporary file that will be read
$sampleSpreadsheet = require __DIR__ . '/../templates/sampleSpreadsheet.php';
$filename = $helper->getTemporaryFilename();
$writer = new Xlsx($sampleSpreadsheet);
$writer->save($filename);
$inputFileType = IOFactory::identify($filename);
$reader = IOFactory::createReader($inputFileType);
$sheetList = $reader->listWorksheetNames($filename);
$sheetInfo = $reader->listWorksheetInfo($filename);
$helper->log('File Type:');
var_dump($inputFileType);
$helper->log('Worksheet Names:');
var_dump($sheetList);
$helper->log('Worksheet Names:');
var_dump($sheetInfo);