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  1. or download this
    while(<FILE>){
  chomp;
  push @data, split(/,/,$_);
}
  2. or download this
    my @data = ();
while(<FILE>){
  chomp;
  push @data, [ split(/,/,$_) ];
}
  3. or download this
    print data[0][0]; # prints the first element of the first line
print data[4][3]; # prints the fifth element of the fourth line