server-tools/excel_import_export_demo/report_sale_order/templates.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2019 Ecosoft Co., Ltd.
  License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html).-->
<odoo>

    <record id="report_sale_order_template" model="xlsx.template">
        <field name="res_model">report.sale.order</field>
        <field name="fname">report_sale_order.xlsx</field>
        <field name="name">Report Sale Order Template</field>
        <field name="description">Sample Report Sales Order Tempalte for testing</field>
        <field name="input_instruction">
            {
                '__EXPORT__': {
                    1: {
                        '_HEAD_': {
                            'B2': 'partner_id.display_name${value or ""}#{align=left;style=text}',
                        },
                        'results': {
                            'A5': 'name${value or ""}#{style=text}',
                            'B5': 'confirmation_date${value or ""}#{style=date}',
                            'C5': 'amount_untaxed${value or 0}#{style=number}@{sum}',
                            'D5': 'amount_tax${value or 0}#{style=number}@{sum}',
                            'E5': 'amount_total${value or 0}#{style=number}@{sum}',
                        },
                    },
                },
            }
        </field>
    </record>

    <function model="xlsx.template" name="load_xlsx_template">
        <value eval="[ref('report_sale_order_template')]"/>
    </function>

</odoo>