Warning: Undefined variable $List in /usr/local/webroot/domainpub/gikai.stage.ac/metro-tokyo-stream/detail.html on line 40

Fatal error: Uncaught InvalidArgumentException: File "./list/.xlsx" does not exist. in /usr/local/webroot/include/V2/PhpSpreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/File.php:146 Stack trace: #0 /usr/local/webroot/include/V2/PhpSpreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/IOFactory.php(115): PhpOffice\PhpSpreadsheet\Shared\File::assertFile('./list/.xlsx') #1 /usr/local/webroot/include/V2/PhpSpreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/IOFactory.php(98): PhpOffice\PhpSpreadsheet\IOFactory::createReaderForFile('./list/.xlsx') #2 /usr/local/webroot/include/V2/SpredSheet.php(139): PhpOffice\PhpSpreadsheet\IOFactory::identify('./list/.xlsx') #3 /usr/local/webroot/domainpub/gikai.stage.ac/metro-tokyo-stream/detail.html(42): SpredSheet->loadBook('./list/.xlsx') #4 {main} thrown in /usr/local/webroot/include/V2/PhpSpreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/File.php on line 146