Acquire best solution to resolve such query "cpanel zip file extraction error in file manager" through zip file recovery software. Just download zip file recovery software upgrade version in your computer hard-disk. More information available here.
http://recoverdataformsbackup.wordpress.com/2013/04/12/how-to-extract-corrupt-zip-files/
http://recoverdataformsbackup.wordpress.com/2013/04/12/how-to-extract-corrupt-zip-files/
