Well, i wrote the following and it worked on my system.
use Win32::OLE;
my $excelfile = 'E:\\perl scripts\\abc.xls';
my $Excel = Win32::OLE->GetActiveObject('Excel.Application')
|| Win32::OLE->new('Excel.Application', 'Quit');
$Excel->{'Visible'} = 1;
my $Book = $Excel->Workbooks->Open($excelfile);
my $Sheet = $Book->Worksheets("Sheet1");
$Sheet->Activate();
#------Here's what u were looking for
$Sheet->range('A4')->copy();
$Sheet->range('B1')->Select();
$Sheet->paste();
With what I've learnt using excel<->perl, i've found that
one should write the code
as one would work manually with excel (step by step), that helps with perl/excel.
That's my feeling anyway!