Several ways of doing it:

($filename, $title) = split /\t/;

or

($filename, $title) = /^(.*)\t(.*)$/;

assuming $_ contains each line of the file in turn.

No reason to be scared of hashes. In your example it's no more difficult to use a hash, than pushing onto separate arrays. In fact I think its easier. Having found your filename and title:

$docTitles{$filename} = $title;

having declared my %docTitles; first, of course :-)

Then you can create your HTML by doing something like:

print "<table>\n";
for my $doc (sort keys %docTitles) {
    print "<tr><td>$doc</td><td>$docTitles{$doc}</td></tr>\n";
}
print "</table>\n";
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(or whatever your markup is gonna look like)