01 Simple file reader using IOFactory

18:40:06 Loading file example1.xls using IOFactory to identify the format

Fatal error: Uncaught PhpOffice\PhpSpreadsheet\Reader\Exception: Unable to identify a reader for this file in /home/bitrix/ext_www/retender.ru/bitrix/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/IOFactory.php:153 Stack trace: #0 /home/bitrix/ext_www/retender.ru/bitrix/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/IOFactory.php(93): PhpOffice\PhpSpreadsheet\IOFactory::createReaderForFile('/home/bitrix/ex...') #1 /home/bitrix/ext_www/retender.ru/export/samples/Reader/01_Simple_file_reader_using_IOFactory.php(9): PhpOffice\PhpSpreadsheet\IOFactory::load('/home/bitrix/ex...') #2 {main} thrown in /home/bitrix/ext_www/retender.ru/bitrix/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/IOFactory.php on line 153