@{$self->{'values'}} = map { [("") x $num_cols] } (1..$num_rows);
@{$self->{'bold'}} = map { [(0) x $num_cols] } (1..$num_rows);
@{$self->{'color'}} = map { [("") x $num_cols] } (1..$num_rows);
@{$self->{'bg_color'}} = map { [("") x $num_cols] } (1..$num_rows);
@{$self->{'bottom'}} = map { [("") x $num_cols] } (1..$num_rows);
@{$self->{'left'}} = map { [("") x $num_cols] } (1..$num_rows);