$cols = array(0, 60, 220, 240, 310, 380, 450, 520);
$headers = array(_('Category'), _('Description'), _('UOM'), _('Opening'), _('Quantity In'), _('Quantity Out'), _('Balance'));
$cols = array(0, 60, 220, 240, 310, 380, 450, 520);
$headers = array(_('Category'), _('Description'), _('UOM'), _('Opening'), _('Quantity In'), _('Quantity Out'), _('Balance'));