account-financial-reporting/account_standard_report/data/data_account_standard_report.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <report
            id="action_standard_report"
            model="account.report.standard.ledger"
            string="Standard Report"
            report_type="qweb-pdf"
            name="account_standard_report.report_account_standard_report"
            file="account_standard_report.report_account_standard_report"/>
        <record id="action_standard_report" model="ir.actions.report.xml">
            <field name="print_report_name">(object.report_id.report_name + '.pdf')</field>
        </record>
        <record id="action_standard_report" model="ir.actions.report.xml">
            <field name="paperformat_id" ref="account_standard_report.paperformat_account_standard"/>
        </record>

        <report
            id="action_standard_excel"
            model="account.report.standard.ledger"
            string="Excel Report"
            report_type="xlsx"
            name="account_standard_report.report_account_standard_excel"
            file="account_standard_report.report_account_standard_excel"/>
        <record id="action_standard_excel" model="ir.actions.report.xml">
            <field name="print_report_name">(object.report_id.report_name + '.xlsx')</field>
        </record>

    </data>
</odoo>