I generated a CSR request from within the Zimbra admin GUI and have downloaded a Zip file from GoDaddy that contains gd_bundle, gd_cross_intermediate, gd_intermediate and xxx.domain.com

I am trying to install in the admin GUI but it's not clear which files to install where.

I am asked for files for these three locations. Certificate: Root CA: and Intermediate CA:

Can anyone provide assistance as to what I need to plugin and where?