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key1 -> 1 2 3 4 5 6 7 8
key2-> 4 6 7 8 3 2 9 7
key3-> 2 3 5 8 9 1 1 2

for my $hash_count ( sort {$a<=>$b} keys %hash){
print  "($hash_count)-> @{$hash{$hash_count}}\n";
}

...
      push @spread_array,"$hash{$hash_count}";
}
$worksheet->write_col(1,1,\@spread_array);