odoo16/addons/spreadsheet_dashboard_purchase/data/dashboards.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="spreadsheet_dashboard_vendors" model="spreadsheet.dashboard">
        <field name="name">Vendors</field>
        <field name="data" type="base64" file="spreadsheet_dashboard_purchase/data/files/vendors_dashboard.json"/>
        <field name="dashboard_group_id" ref="spreadsheet_dashboard.spreadsheet_dashboard_group_logistics"/>
        <field name="group_ids" eval="[Command.link(ref('purchase.group_purchase_manager'))]"/>
        <field name="sequence">200</field>
    </record>

</odoo>