odoo16/odoo/addons/base/views/ir_attachment_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
        <!-- Attachment -->
        <record id="view_attachment_form" model="ir.ui.view">
            <field name="model">ir.attachment</field>
            <field name="arch" type="xml">
                <form string="Attachments">
                   <sheet>
                    <label for="name"/>
                    <h1>
                        <field name="name"/>
                    </h1>
                    <group>
                        <group>
                            <field name="type"/>
                            <field name="datas" filename="name" attrs="{'invisible':[('type','=','url')]}"/>
                            <field name="url" widget="url" attrs="{'invisible':[('type','=','binary')]}"/>
                            <field name="mimetype" groups="base.group_no_one"/>
                        </group>
                        <group string="Attached To" groups="base.group_no_one">
                            <field name="res_model"/>
                            <field name="res_field"/>
                            <field name="res_id"/>
                            <field name="res_name"/>
                            <field name="company_id" groups="base.group_multi_company" options="{'no_create': True}"/>
                            <field name="public"/>
                        </group>
                        <group string="History" groups="base.group_no_one" attrs="{'invisible':[('create_date','=',False)]}">
                            <label for="create_uid" string="Creation"/>
                            <div name="creation_div">
                                <field name="create_uid" readonly="1" class="oe_inline"/> on
                                <field name="create_date" readonly="1" class="oe_inline"/>
                            </div>
                        </group>
                        <group name="description_group" string="Description" groups="base.group_no_one" colspan="4">
                            <field name="description" nolabel="1" colspan="2"/>
                        </group>
                        <group groups="base.group_no_one" string="Indexed Content" colspan="4">
                            <field name="index_content" nolabel="1" colspan="2"/>
                        </group>
                    </group>
                  </sheet>
                </form>
            </field>
        </record>
        <record id="view_attachment_tree" model="ir.ui.view">
            <field name="model">ir.attachment</field>
            <field name="arch" type="xml">
                <tree string="Attachments">
                    <field name="name"/>
                    <field name="res_model"/>
                    <field name="res_field"/>
                    <field name="res_id"/>
                    <field name="type"/>
                    <field name="file_size"/>
                    <field name="company_id" groups="base.group_multi_company"/>
                    <field name="create_uid"/>
                    <field name="create_date"/>
                </tree>
            </field>
        </record>
        <record id="view_attachment_search" model="ir.ui.view">
            <field name="model">ir.attachment</field>
            <field name="arch" type="xml">
                <search string="Attachments">
                    <field name="name" filter_domain="[('name','ilike',self)]" string="Attachment"/>
                    <field name="create_date"/>
                    <filter name="my_documents_filter"
                        string="My Document(s)"
                        domain="[('create_uid','=',uid)]"
                        help="Filter on my documents"/>
                    <filter name="url_filter" string="URL" domain="[('type', '=', 'url')]"/>
                    <filter name="binary_filter" string="Stored" domain="[('type', '=', 'binary')]"/>
                    <separator/>
                    <field name="create_uid" string="Created by"/>
                    <field name="type"/>
                    <group expand="0" string="Group By">
                        <filter name="owner" string="Owner" domain="[]" context="{'group_by':'create_uid'}"/>
                        <filter string="Type" name="type" domain="[]" context="{'group_by':'type'}" groups="base.group_no_one"/>
                        <filter string="Company" name="company" domain="[]" context="{'group_by':'company_id'}" groups="base.group_multi_company"/>
                        <filter string="Creation Date" name="creation_month" domain="[]" context="{'group_by':'create_date'}"/>
                    </group>
                </search>
            </field>
        </record>
        <record id="action_attachment" model="ir.actions.act_window">
            <field name="name">Attachments</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">ir.attachment</field>
            <field name="view_id" eval="False"/>
            <field name="search_view_id" ref="view_attachment_search"/>
            <field name="help" type="html">
                <p class="o_view_nocontent_smiling_face">
                    Create a new document
                </p>
                <p>
                    Also you will find here all the related documents and download it by clicking on any individual document.
                </p>
            </field>
        </record>
        <menuitem action="action_attachment" id="menu_action_attachment" parent="base.next_id_9"/>

</odoo>