note 118068 added to book.fileinfo

what should i do when i'm installing omeka on my xampp, then when last part installation i opened it on the browser and type localhost/omeka/, and it said as following : Installation Warning The following issues will not affect installation, but they may negatively affect the behavior of Omeka:' "fileinfo" module not loaded Without the fileinfo module loaded into PHP, the content type and encoding of uploaded files about cannot be read. The installer will disable file upload validation. Configure Your Site * required field Default Superuser Account ---- Server IP: 72.52.91.14 Probable Submitter: 111.95.4.76 ---- Manual Page -- http://php.net/manual/en/book.fileinfo.php Edit -- https://master.php.net/note/edit/118068 Del: integrated -- https://master.php.net/note/delete/118068/integrated Del: useless -- https://master.php.net/note/delete/118068/useless Del: bad code -- https://master.php.net/note/delete/118068/bad+code Del: spam -- https://master.php.net/note/delete/118068/spam Del: non-english -- https://master.php.net/note/delete/118068/non-english Del: in docs -- https://master.php.net/note/delete/118068/in+docs Del: other reasons-- https://master.php.net/note/delete/118068 Reject -- https://master.php.net/note/reject/118068 Search -- https://master.php.net/manage/user-notes.php