Fatal error: Uncaught Error: Interface 'PHPExcel_RichText_ITextElement' not found in D:\Apache241\htdocs\phpexcel\Classes\PHPExcel\RichText\TextElement.php:34 Stack trace: #0 {main} thrown in D:\Apache241\htdocs\phpexcel\Classes\PHPExcel\RichText\TextElement.php on line 34