#!usr/bin/perl
my $newfile = 'cleaned.csv';
open(my $newfh, '>', $newfile) or die "Can't read file '$newfile' [$!]\n";
my $file = 'original.csv';
my @data;
open(my $fh, '<', $file) or die "Can't read file '$file' [$!]\n";
while (my $line = <$fh>) {
    chomp $line;
    my @fields = split(/,/, $line);
	if ($fields[4] eq "Control Line"){
		$line2=<$fh>; #second line
		$line3=<$fh>; #third line
		print $newfh "$line\n";
		print $newfh "$line2";
		print $newfh "$line3";
	}else{
		print "$line\n";
	}
}
close ($fh);
close ($newfh);