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  1. or download this
        foreach my $line (@rows) {
            $line =~ s/\t/\x09/ig;
    ...
            print FILE "\"$line\",";
            $cell++;
        }
    
  2. or download this
    perl -le '$cat = "cat"; if ($cat =~ /\143\x61\x74/) { print "Its a cat
    +!\n"; } else { print "Thats a dog\n"; }'