If you've never installed a Perl module before, you might want to go with one of the shorter alternatives presented later in this thread. I was just wanting to make the snippet work, which would require the other modules.

Installing Perl modules often isn't as simple as copying files from metacpan.org -- instead, you'd typically want to use a utility program called cpan or cpanm that is run from a command line. If you have Perl already installed, you might be able to do that. You'd type "cpan CGI::Application" and then (after that module and any dependencies are installed automatically) "cpan CGI::Aplication::Plugin::Output::XSV" (without the quotation marks).