for my $row(1 ..$row_max){
        my $count = 1;
        my @data = map {
            my $cell = $worksheet->get_cell($row, $_); 
            $cell ? $cell->value() : ''; 
        } @required_cols;

        foreach my $col(@values){
            warn $worksheet->get_cell($row,0)->value() . $col."\n";
            $details->{ $worksheet->get_cell($row,0)->value() }{$col} = shift @data
                if defined $worksheet->get_cell($row, 1)->value(); 
        }
    }