You can print the whole array at once.

use strict;
use warnings;

#my $file = "data.txt";
my $file = \do{my $simulated_file = "line1\nline2\nline3\nline4\n";};
# Line above simulates the file.

open (my $fh, '<', $file) or die "can't open file $!";
my @stack = <$fh>;
chomp @stack;
{
    local $, = "\n";
    print reverse( @stack ), "\n";
}
@stack = ();    # Only needed if you wish to destroy the @stack

OUTPUT:
line4
line3
line2
line1
[download]

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