I am using Spreadsheet::WriteExcel module. And, I keep getting an error message called"unknown method: spreadsheet::write::format::set_big_color" excel I code for color formatting. Can somebody point out what is wrong with the code?

#! perl -w

use strict;
use warnings;
use 5.014;
use Spreadsheet::WriteExcel;

my $workbook=Spreadsheet::WriteExcel->new('perl1.xls');
my $worksheet=$workbook->add_worksheet();
my $red_background=$workbook ->add_format(
color => 'white',
big_color => 'red',
bold => 1,
);
$worksheet->write(0,0,'colored cell',$red_background);
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