$worksheet1->write(0,1,"Modules", $format);
$worksheet1->write(0,2,"Excel");
$worksheet1->write(0,3, "Dumper");

##</code><code>##

Modules	Excel	Dumper

##</code><code>##

$worksheet1->write(0,1,"Modules", $format);
$worksheet1->write(1,1,"Excel");
$worksheet1->write(2,1, "Dumper");

##</code><code>##

Modules
Excel
Dumper
##</code><code>##

$worksheet1->write(0,0,"A1");
$worksheet1->write(0,1,"B1");
$worksheet1->write(0,2, "C1");

$worksheet1->write(1,0,"A2");
$worksheet1->write(1,1,"B2");
$worksheet1->write(1,2, "C2");

$worksheet1->write(2,0,"A3");
$worksheet1->write(2,1,"B3");
$worksheet1->write(2,2, "C3");

##</code><code>##

A1	B1	C1
A2	B2	C2
A3	B3	C3