Fatal error: Class 'PHPExcel_Shared_ZipStreamWrapper' not found in /example.com/www/classes/PHPExcel/Autoloader.php on line 29 -

i want ask all.

i'm using domain hosting phpexcel export excel error like:

fatal error: class 'phpexcel_shared_zipstreamwrapper' not found in /example.com/www/classes/phpexcel/autoloader.php on line 29

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