server-tools/excel_import_export/wizard/import_xlsx_wizard.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="import_xlsx_wizard" model="ir.ui.view">
        <field name="name">import.xlsx.wizard</field>
        <field name="model">import.xlsx.wizard</field>
        <field name="arch" type="xml">
            <form string="Import File Template">
                <field name="id" invisible="1"/>
                <field name="state" invisible="1"/>
                <field name="fname" invisible="1"/>
                <field name="res_model" invisible="1"/>
                <field name="res_id" invisible="1"/>
                <group states="choose">
                    <group>
                        <field name="import_file" attrs="{'invisible': [('res_id', '=', False)]}"/>
                        <field name="attachment_ids" widget="many2many_binary" nolabel="1"
                          attrs="{'invisible': [('res_id', '!=', False)]}"/>
                    </group>
                    <group>
                        <field name="template_id" widget="selection"/>
                        <div colspan="2">
                            <button name="get_import_sample" string="⇒ Get Sample Import Template"
                                type="object" class="oe_link" attrs="{'invisible': [('id', '!=', False)]}"/>
                        </div>
                        <field name="datas" filename="fname" attrs="{'invisible': [('id', '=', False)]}"/>
                    </group>
                </group>
                <group states="get">
                    <p>
                        Import Successful!
                    </p>
                </group>
                <footer states="choose">
                    <button name="action_import" string="Import" type="object" class="oe_highlight"/>
                    or
                    <button string="Cancel" class="oe_link" special="cancel"/>
                </footer>
                <footer states="get">
                    <button string="Close" class="oe_link" special="cancel"/>
                </footer>
            </form>
        </field>
    </record>

</odoo>