I'm not comfortable that your description of the data-set is complete enough to provide a answer with any degree of confidence that it will "just work." But assuming you've got quoted fields delimited by a space character, use Text::CSV, and set sep_char => q{ }, # 0x20.

CPAN is how you "do that in Perl."

Update: An example is in order:

use Text::CSV;

my $csv = Text::CSV->new( {
    sep_char => q/ /, # 0x20
    escape_char => q/\\/, # Single backslash escapes.
} );

while( my $row = $csv->getline(\*DATA) ) {
    print '[', join( ']  [', @{$row} ), "]\n";
}

__DATA__
"qazwsx" "edcrfv" "tgbyhn"
"asdf" "ghjk" "l;zx" "cv\"bn"
[download]

...which will produce the following output...

[qazwsx]  [edcrfv]  [tgbyhn]
[asdf]  [ghjk]  [l;zx]  [cv"bn]
[download]

I threw in an escaped quote character just for fun.

#!/usr/bin/env perl
use strict;
use warnings;
use feature 'say';

my $string = q("qazwsx" "edcrfv" "tgbyhn");
my @array = $string =~ /"([^"]*)"/g;
say $_ for @array;

__END__
qazwsx
edcrfv
tgbyhn
[download]

Start with Text::CSV esp with these programs that are in the Text::CSV_XS distribution

examples/csv-check	Script to check a CSV file/stream
examples/csvdiff	Script to shoff diff between sorted CSV files
examples/parser-xs.pl	Parse CSV stream, be forgiving on bad lines
examples/speed.pl	Small benchmark script