$worksheet->set_row( 8, 0 );
   $worksheet->set_column( 'A:B', 30 );
   $worksheet->set_border('A:B',30); # Set borders on this range
   $worksheet->set_top('A:B',30); #Set border only to top
    
my $format_box = $workbook->add_format(
        border    => 1,
        underline => 0,
        color     => 'black',
        align     => 'left',
        valign    => 'top',
       );

##</code><code>##


my $format_box = $workbook->add_format(
        #border    => 1,
        underline => 0,
        color     => 'black',
        align     => 'left',
        valign    => 'top',    
    );

    $format_box = set_border(1); # Turn on borders
    $format_box = set_top(1); # Set value to true