I'm not big on CGI.pm, but I don't know of a way to put those values in the HTTP headers. Instead, you can put them in the HTML head. I assume that's what you meant, anyway, since you said "http-equiv", which is for the META element.

Search the CGI.pm perldoc for -head. 
use CGI qw(:all);
my $cgi = CGI->new;

print $cgi->header;
print $cgi->start_html(
  -head => meta( {
  'http-equiv' => 'refresh',
  'content'    => '5',
  'url'        => 'http://url/file.xls'
}));
print "<h1>HTML Body</h1>";
print $cgi->end_html();

[download]
rjbs

In reply to Re: Cannot download and print html by rjbs
in thread Cannot download and print html by frank_2k4

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