use Text::CSV_XS;

my $csv = Text::CSV_XS->new ({ binary => 1, auto_diag => 1 });
open my $data, "<", $file_c or die "$file_c: $!\n";
my $rows = 0;
while (my $row = $csv->getline ($data)) {
    $rows++;
    }
print "Total $rows rows (including header line)\n";

##</code><code>##

$ ll xx.csv
12862169 -rw-rw-rw- 1 merijn users 415423 Sep  6 16:00 xx.csv
$ perl -MDBI -wE'say DBI->connect("dbi:CSV:f_ext=.csv")->selectrow_arrayref("select count(*) from xx")->[0]," rows in fs"'
8739 rows in fs