use Excel::Template;

my $template = Excel::Template->new(
    file => \*DATA,
);

my @data;
for ($j = 1; $j <= $#model; $j++)  {
    push @data, {
        device_model => $model[$j],
        devices_per_model => $device_per_model,
        devices_per_variant => $devicesPerVariant[$j],
        model_variant_processor => $processor[$j],
        device_memory => $memory[$j],
        device_software => $softwareVersion[$j],
    };
}

$template->param(
    data => \@data,
);

$template->write_to_file( "somefile.xls" );

__DATA__
<workbook>
  <worksheet>
    <row>
      <cell>Equipment Model</cell>
      <cell>Devices Per Model</cell>
      <cell>Devices Per Variant</cell>
      <cell>Model Variant Processor</cell>
      <cell>Device Memory</cell>
      <cell>Device Software</cell>
    </row>
    <loop name="data">
      <row>
        <cell><var name="equipment_model"/></cell>
        <cell><var name="devices_per_model"/></cell>
        <cell><var name="devices_per_variant"/></cell>
        <cell><var name="model_variant_processor"/></cell>
        <cell><var name="device_memory"/></cell>
        <cell><var name="device_software"/></cell>
      </row>
    </loop>
  </worksheet>
</workbook>