Joined: 06 Jun 2008 Posts: 8339 Location: Dubuque, Iowa, USA
Details, details, details...
Did you use the mainframe version of PKZIP to zip the file? If so, contact your site support group (or the vendor) to find out how to unzip it -- or transfer it to a PC in binary format and unzip it there.
If you zipped the file on another platform and want to unzip it on the mainframe, you need to be aware that zip packages for the mainframe are not cheap and many mainframe sites do not support use of zipped files.