Fatal error: Uncaught Error: Interface "PhpOffice\PhpSpreadsheet\RichText\ITextElement" not found in D:\xampp\htdocs\vendor\phpoffice\phpspreadsheet\RichText\TextElement.php:7 Stack trace: #0 {main} thrown in D:\xampp\htdocs\vendor\phpoffice\phpspreadsheet\RichText\TextElement.php on line 7