( ! ) Fatal error: Uncaught Error: Interface 'PHPExcel_Writer_IWriter' not found in C:\wamp\www\Classes\PHPExcel\Writer\Abstract.php on line 28
( ! ) Error: Interface 'PHPExcel_Writer_IWriter' not found in C:\wamp\www\Classes\PHPExcel\Writer\Abstract.php on line 28
Call Stack
#	Time	Memory	Function	Location
1	0.4411	413568	{main}( )	...\Abstract.php:0