Fatal error: Uncaught Error: Interface "PHPExcel_RichText_ITextElement" not found in C:\web\xampp02\htdocs\EasyTec\excel01\Classes\PHPExcel\RichText\TextElement.php:26 Stack trace: #0 {main} thrown in C:\web\xampp02\htdocs\EasyTec\excel01\Classes\PHPExcel\RichText\TextElement.php on line 26