diff --git a/report_xml/README.rst b/report_xml/README.rst
index f73c8204..a290fd66 100644
--- a/report_xml/README.rst
+++ b/report_xml/README.rst
@@ -14,16 +14,16 @@ XML Reports
     :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
     :alt: License: AGPL-3
 .. |badge3| image:: https://img.shields.io/badge/github-OCA%2Freporting--engine-lightgray.png?logo=github
-    :target: https://github.com/OCA/reporting-engine/tree/12.0/report_xml
+    :target: https://github.com/OCA/reporting-engine/tree/13.0/report_xml
     :alt: OCA/reporting-engine
 .. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
-    :target: https://translation.odoo-community.org/projects/reporting-engine-12-0/reporting-engine-12-0-report_xml
+    :target: https://translation.odoo-community.org/projects/reporting-engine-13-0/reporting-engine-13-0-report_xml
     :alt: Translate me on Weblate
 .. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
-    :target: https://runbot.odoo-community.org/runbot/143/12.0
+    :target: https://runbot.odoo-community.org/runbot/143/13.0
     :alt: Try me on Runbot
 
-|badge1| |badge2| |badge3| |badge4| |badge5| 
+|badge1| |badge2| |badge3| |badge4| |badge5|
 
 This module was written to extend the functionality of the reporting engine to
 support XML reports and allow modules to generate them by code or by QWeb
@@ -56,25 +56,30 @@ This module is intended as a base engine for other modules to use it, so no dire
 If you are a developer
 ~~~~~~~~~~~~~~~~~~~~~~
 
-To learn from an example, just check the `sample module`_.
+To learn from an example, just check the `demo report`_ on GitHub for
+the model ``res.company`` or check it in interface from companies views.
 
 To develop with this module, you need to:
 
 * Create a module.
 * Make it depend on this one.
 * Follow `instructions to create reports`_ having in mind that the
-  ``report_type`` field in your ``ir.actions.report.xml`` record must be
+  ``report_type`` field in your ``ir.actions.report`` record must be
   ``qweb-xml``.
 
 In case you want to create a `custom report`_, the instructions remain the same
 as for HTML reports, and the method that you must override is also called
 ``_get_report_values``, even when this time you are creating a XML report.
 
-You can make your custom report inherit ``report_xml.xsd_checked_report``, name
-it like your XML ``<template>`` id prepended by ``report.``, add a ``xsd()``
-method that returns a XSD in a string, and have XSD automatic checking for
+You can make your custom report inherit ``report.report_xml.abstract``, name
+it in such way ``report.<module.report_name>``. Also you can add a XSD file for
+report validation into ``xsd_schema`` field of your report (check
+`report definition`_) and have XSD automatic checking for
 free.
 
+You can customize rendering process and validation way via changing logic of
+``generate_report`` and ``validate_report`` methods in your report class.
+
 You can visit ``http://<server-address>/report/xml/<module.report_name>/<ids>``
 to see your XML report online as a web page.
 
@@ -83,9 +88,10 @@ For further information, please visit:
 * https://www.odoo.com/forum/help-1
 * https://github.com/OCA/reporting-engine
 
-.. _custom report: https://www.odoo.com/documentation/12.0/reference/reports.html#custom-reports
-.. _instructions to create reports: https://www.odoo.com/documentation/12.0/reference/reports.html
-.. _sample module: https://github.com/OCA/reporting-engine/tree/12.0/report_xml_sample
+.. _custom report: https://www.odoo.com/documentation/13.0/reference/reports.html#custom-reports
+.. _instructions to create reports: https://www.odoo.com/documentation/13.0/reference/reports.html
+.. _demo report: https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/demo_report.xml
+.. _report definition: https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/report.xml
 
 Bug Tracker
 ===========
@@ -93,7 +99,7 @@ Bug Tracker
 Bugs are tracked on `GitHub Issues <https://github.com/OCA/reporting-engine/issues>`_.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
-`feedback <https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_xml%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+`feedback <https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_xml%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
 
 Do not contact contributors directly about support or help with technical issues.
 
@@ -104,14 +110,16 @@ Authors
 ~~~~~~~
 
 * Tecnativa
+* Avoin.Systems
 
 Contributors
 ~~~~~~~~~~~~
 
 * Enric Tobella <etobella@creublanca.es>
 * `Tecnativa <https://www.tecnativa.com>`_:
-
-  Jairo Llopis
+    * Jairo Llopis
+* `Avoin.Systems <https://avoin.systems/>`_:
+    * Tatiana Deribina
 
 Other credits
 ~~~~~~~~~~~~~
@@ -131,6 +139,6 @@ OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.
 
-This module is part of the `OCA/reporting-engine <https://github.com/OCA/reporting-engine/tree/12.0/report_xml>`_ project on GitHub.
+This module is part of the `OCA/reporting-engine <https://github.com/OCA/reporting-engine/tree/13.0/report_xml>`_ project on GitHub.
 
 You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/report_xml/__init__.py b/report_xml/__init__.py
index 9c6a8001..64ad9336 100644
--- a/report_xml/__init__.py
+++ b/report_xml/__init__.py
@@ -2,3 +2,5 @@
 
 from . import controllers
 from . import models
+from . import reports
+from .hooks import post_init_hook
diff --git a/report_xml/__manifest__.py b/report_xml/__manifest__.py
index 5e89d51b..ba8344aa 100644
--- a/report_xml/__manifest__.py
+++ b/report_xml/__manifest__.py
@@ -2,15 +2,27 @@
 # License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
 {
     "name": "XML Reports",
-    "version": "12.0.1.0.0",
+    "version": "13.0.1.0.0",
     "category": "Reporting",
     "website": "https://github.com/OCA/reporting-engine",
-    "author": "Tecnativa, " "Odoo Community Association (OCA)",
+    "author": "Tecnativa, Odoo Community Association (OCA), Avoin.Systems",
     "license": "AGPL-3",
     "installable": True,
     "application": False,
     "summary": "Allow to generate XML reports",
     "depends": ["web"],
-    "data": ["views/webclient_templates.xml", "views/ir_actions_views.xml"],
-    "demo": ["demo/report.xml"],
+    "data": [
+        "views/webclient_templates.xml",  # add js handlers for action manager
+        "views/ir_actions_report_view.xml",
+    ],
+    "demo": [
+        "demo/report.xml",  # register report in the system
+        "demo/demo_report.xml",  # report body definition
+    ],
+    "external_dependencies": {
+        "python": [  # Python third party libraries required for module
+            "lxml"  # XML and HTML with Python
+        ]
+    },
+    "post_init_hook": "post_init_hook",
 }
diff --git a/report_xml/controllers/main.py b/report_xml/controllers/main.py
index 953c55b6..f7c64666 100644
--- a/report_xml/controllers/main.py
+++ b/report_xml/controllers/main.py
@@ -39,9 +39,7 @@ class ReportController(report.ReportController):
             ]
             return request.make_response(xml, headers=xmlhttpheaders)
         else:
-            return super(ReportController, self).report_routes(
-                reportname, docids, converter, **data
-            )
+            return super().report_routes(reportname, docids, converter, **data)
 
     @route()
     def report_download(self, data, token):
@@ -73,13 +71,13 @@ class ReportController(report.ReportController):
                 filename = "%s.xml" % (report.name)
 
                 if docids:
-                    ids = [int(x) for x in docids.split(",")]
+                    ids = [int(doc_id) for doc_id in docids.split(",")]
                     records = request.env[report.model].browse(ids)
                     if report.print_report_name and not len(records) > 1:
                         report_name = safe_eval(
                             report.print_report_name, {"object": records, "time": time}
                         )
-                        filename = "%s.xml" % (report_name)
+                        filename = "{}.xml".format(report_name)
                 response.headers.add(
                     "Content-Disposition", content_disposition(filename)
                 )
@@ -90,4 +88,4 @@ class ReportController(report.ReportController):
                 error = {"code": 200, "message": "Odoo Server Error", "data": se}
                 return request.make_response(html_escape(json.dumps(error)))
         else:
-            return super(ReportController, self).report_download(data, token)
+            return super().report_download(data, token)
diff --git a/report_xml/demo/demo_report.xml b/report_xml/demo/demo_report.xml
new file mode 100644
index 00000000..521ff610
--- /dev/null
+++ b/report_xml/demo/demo_report.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <template id="demo_report_xml_view">
+        <root>
+            <user t-foreach="docs" t-as="doc">
+                <id t-esc="doc.id" />
+                <name t-esc="doc.name" />
+                <vat t-esc="doc.vat" />
+            </user>
+        </root>
+    </template>
+</odoo>
diff --git a/report_xml/demo/demo_report.xsd b/report_xml/demo/demo_report.xsd
new file mode 100644
index 00000000..e19b01d3
--- /dev/null
+++ b/report_xml/demo/demo_report.xsd
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+    <xs:element name="root" type="root_type"/>
+
+    <xs:complexType name="root_type">
+        <xs:sequence>
+            <xs:element name="user"
+                        type="user_type"
+                        minOccurs="0"
+                        maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="user_type">
+        <xs:sequence>
+            <xs:element name="id" type="xs:int"/>
+            <xs:element name="name" type="xs:string"/>
+            <xs:element name="vat" type="xs:string" minOccurs="0"/>
+        </xs:sequence>
+    </xs:complexType>
+
+</xs:schema>
diff --git a/report_xml/demo/report.xml b/report_xml/demo/report.xml
index 4504ec82..67acbf1c 100644
--- a/report_xml/demo/report.xml
+++ b/report_xml/demo/report.xml
@@ -1,19 +1,19 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8" ?>
 <odoo>
-    <template id="demo_report_xml_view">
-        <root>
-            <user t-foreach="docs" t-as="doc">
-                <name t-esc="doc.name"/>
-                <vat t-esc="doc.vat"/>
-            </user>
-        </root>
-    </template>
-
-    <report id="demo_xml_report"
-            name="report_xml.demo_report_xml_view"
-            string="Demo xml report"
-            report_type="qweb-xml"
-            print_report_name="'Demo xml report'"
-            file="report_xml.xml"
-            model="res.company"/>
+    <report
+        id="demo_xml_report"
+        name="report_xml.demo_report_xml_view"
+        string="Demo xml report"
+        report_type="qweb-xml"
+        print_report_name="'Demo xml report'"
+        model="res.company"
+    />
+    <!--
+        In case of demo data next definition will not work. So it just example
+        how it should look. If report is a part of demo data you will need
+        add file to report instance via `post_install_hook`
+    -->
+    <record id="demo_xml_report" model="ir.actions.report">
+        <field name="xsd_schema" type="base64" file="report_xml/demo/demo_report.xsd" />
+    </record>
 </odoo>
diff --git a/report_xml/hooks.py b/report_xml/hooks.py
new file mode 100644
index 00000000..67a17a64
--- /dev/null
+++ b/report_xml/hooks.py
@@ -0,0 +1,47 @@
+# License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
+
+import os
+
+from odoo import SUPERUSER_ID, api
+
+
+def post_init_hook(cr, registry):
+    """
+    Loaded after installing this module, and before the next module starts
+    installing.
+
+    Add XSD Validation Schema for a demo report if it's in the system.
+    Demo data records are always created with `noupdate == True` and render of
+    tag `report` doesn't support new `ir.actions.report` field `xsd_schema`.
+    Thus it is impossible to define `xsd_schema` in the demo definition or add
+    schema after that via xml update record. Therefore it possible to add value
+    to `xsd_schema` field for demo record only via hook.
+
+    Args:
+     * cr(odoo.sql_db.Cursor) - database cursor.
+     * registry(odoo.modules.registry.RegistryManager) - a mapping between
+     model names and model classes.
+    """
+    with api.Environment.manage():
+        env = api.Environment(cr, SUPERUSER_ID, {})
+        report_domain = [
+            ("report_name", "=", "report_xml.demo_report_xml_view")  # report tech name
+        ]
+        demo_report = env["ir.actions.report"].search(report_domain, limit=1)
+        if demo_report:
+            dir_path = os.path.dirname(__file__)
+            xsd_file_relative_path = "demo/demo_report.xsd"
+            xsd_file_full_path = os.path.join(dir_path, xsd_file_relative_path)
+
+            with open(xsd_file_full_path, "r") as xsd:
+                # `xsd_schema` is binary fields with an attribute
+                # `attachment=True` so XSD Schema will be added as attachment
+                attach_vals = {
+                    "name": "Demo Report.xsd",
+                    "datas": xsd.read(),
+                    "res_model": "ir.actions.report",
+                    "res_id": demo_report.id,
+                    "res_field": "xsd_schema",
+                    "type": "binary",
+                }
+                env["ir.attachment"].create(attach_vals)
diff --git a/report_xml/models/__init__.py b/report_xml/models/__init__.py
index ce7d113e..f7c21950 100644
--- a/report_xml/models/__init__.py
+++ b/report_xml/models/__init__.py
@@ -1,3 +1,3 @@
 # License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
 
-from . import report_action
+from . import ir_actions_report
diff --git a/report_xml/models/ir_actions_report.py b/report_xml/models/ir_actions_report.py
new file mode 100644
index 00000000..56e125d6
--- /dev/null
+++ b/report_xml/models/ir_actions_report.py
@@ -0,0 +1,62 @@
+# Copyright (C) 2014-2015  Grupo ESOC <www.grupoesoc.es>
+# License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class IrActionsReport(models.Model):
+    _inherit = "ir.actions.report"
+
+    report_type = fields.Selection(selection_add=[("qweb-xml", "XML")])
+    xsd_schema = fields.Binary(
+        string="XSD Validation Schema",
+        attachment=True,
+        help=(
+            "File with XSD Schema for checking content of result report. "
+            "Can be empty if validation is not required."
+        ),
+    )
+    xml_encoding = fields.Selection(
+        selection=[
+            ("UTF-8", "UTF-8")  # will be used as default even if nothing is selected
+        ],
+        string="XML Encoding",
+        help=(
+            "Encoding for XML reports. If nothing is selected, "
+            "then UTF-8 will be applied."
+        ),
+    )
+    xml_declaration = fields.Boolean(
+        string="XML Declaration",
+        help=(
+            """Add `<?xml encoding="..." version="..."?>` at the start """
+            """of final report file."""
+        ),
+    )
+
+    def render_qweb_xml(self, docids, data=None):
+        """
+        Call `generate_report` method of report abstract class
+        `report.<report technical name>` or of standard class for XML report
+        rendering - `report.report_xml.abstract`
+
+        Args:
+         * docids(list) - IDs of instances for those report will be generated
+         * data(dict, None) - variables for report rendering
+
+        Returns:
+         * str - result content of report
+         * str - type of result content
+        """
+        report_model_name = "report.{}".format(self.report_name)
+
+        report_model = self.env.get(report_model_name)
+        if report_model is None:
+            report_model = self.env["report.report_xml.abstract"]
+
+        content, ttype = report_model.generate_report(
+            ir_report=self,  # will be used to get settings of report
+            docids=docids,
+            data=data,
+        )
+        return content, ttype
diff --git a/report_xml/models/report_action.py b/report_xml/models/report_action.py
deleted file mode 100644
index 62547c59..00000000
--- a/report_xml/models/report_action.py
+++ /dev/null
@@ -1,31 +0,0 @@
-# Copyright (C) 2014-2015  Grupo ESOC <www.grupoesoc.es>
-# License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
-
-from lxml import etree
-
-from odoo import api, fields, models
-
-
-class ReportAction(models.Model):
-    _inherit = "ir.actions.report"
-
-    report_type = fields.Selection(selection_add=[("qweb-xml", "XML")])
-
-    @api.model
-    def render_qweb_xml(self, docids, data=None):
-        if not data:
-            data = {}
-        data.setdefault("report_type", "text")
-        data = self._get_rendering_context(docids, data)
-        result = self.render_template(self.report_name, data)
-        return (
-            etree.tostring(
-                etree.fromstring(
-                    str(result, "UTF-8").lstrip("\n").lstrip().encode("UTF-8")
-                ),
-                encoding="UTF-8",
-                xml_declaration=True,
-                pretty_print=True,
-            ),
-            "xml",
-        )
diff --git a/report_xml/readme/CONTRIBUTORS.rst b/report_xml/readme/CONTRIBUTORS.rst
index 98e13bae..12497944 100644
--- a/report_xml/readme/CONTRIBUTORS.rst
+++ b/report_xml/readme/CONTRIBUTORS.rst
@@ -1,4 +1,5 @@
 * Enric Tobella <etobella@creublanca.es>
 * `Tecnativa <https://www.tecnativa.com>`_:
-
-  Jairo Llopis
+    * Jairo Llopis
+* `Avoin.Systems <https://avoin.systems/>`_:
+    * Tatiana Deribina
diff --git a/report_xml/readme/USAGE.rst b/report_xml/readme/USAGE.rst
index 8a8160c2..3574a6bb 100644
--- a/report_xml/readme/USAGE.rst
+++ b/report_xml/readme/USAGE.rst
@@ -3,25 +3,30 @@ This module is intended as a base engine for other modules to use it, so no dire
 If you are a developer
 ~~~~~~~~~~~~~~~~~~~~~~
 
-To learn from an example, just check the `sample module`_.
+To learn from an example, just check the `demo report`_ on GitHub for
+the model ``res.company`` or check it in interface from companies views.
 
 To develop with this module, you need to:
 
 * Create a module.
 * Make it depend on this one.
 * Follow `instructions to create reports`_ having in mind that the
-  ``report_type`` field in your ``ir.actions.report.xml`` record must be
+  ``report_type`` field in your ``ir.actions.report`` record must be
   ``qweb-xml``.
 
 In case you want to create a `custom report`_, the instructions remain the same
 as for HTML reports, and the method that you must override is also called
 ``_get_report_values``, even when this time you are creating a XML report.
 
-You can make your custom report inherit ``report_xml.xsd_checked_report``, name
-it like your XML ``<template>`` id prepended by ``report.``, add a ``xsd()``
-method that returns a XSD in a string, and have XSD automatic checking for
+You can make your custom report inherit ``report.report_xml.abstract``, name
+it in such way ``report.<module.report_name>``. Also you can add a XSD file for
+report validation into ``xsd_schema`` field of your report (check
+`report definition`_) and have XSD automatic checking for
 free.
 
+You can customize rendering process and validation way via changing logic of
+``generate_report`` and ``validate_report`` methods in your report class.
+
 You can visit ``http://<server-address>/report/xml/<module.report_name>/<ids>``
 to see your XML report online as a web page.
 
@@ -30,6 +35,7 @@ For further information, please visit:
 * https://www.odoo.com/forum/help-1
 * https://github.com/OCA/reporting-engine
 
-.. _custom report: https://www.odoo.com/documentation/12.0/reference/reports.html#custom-reports
-.. _instructions to create reports: https://www.odoo.com/documentation/12.0/reference/reports.html
-.. _sample module: https://github.com/OCA/reporting-engine/tree/12.0/report_xml_sample
+.. _custom report: https://www.odoo.com/documentation/13.0/reference/reports.html#custom-reports
+.. _instructions to create reports: https://www.odoo.com/documentation/13.0/reference/reports.html
+.. _demo report: https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/demo_report.xml
+.. _report definition: https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/report.xml
diff --git a/report_xml/reports/__init__.py b/report_xml/reports/__init__.py
new file mode 100644
index 00000000..fff0f44d
--- /dev/null
+++ b/report_xml/reports/__init__.py
@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
+
+from . import report_report_xml_abstract
diff --git a/report_xml/reports/report_report_xml_abstract.py b/report_xml/reports/report_report_xml_abstract.py
new file mode 100644
index 00000000..b3fd291d
--- /dev/null
+++ b/report_xml/reports/report_report_xml_abstract.py
@@ -0,0 +1,123 @@
+# License AGPL-3.0 or later (https://www.gnuorg/licenses/agpl.html).
+
+from base64 import b64decode
+from xml.dom import minidom
+
+from lxml import etree
+
+from odoo import api, models
+from odoo.exceptions import ValidationError
+
+
+class ReportXmlAbstract(models.AbstractModel):
+    """
+    Model `report.report_xml.abstract`.
+
+    This class provide basic methods for rendering XML report and it's
+    validation by XSD schema.
+    """
+
+    _name = "report.report_xml.abstract"
+    _description = "Abstract XML Report"
+
+    @api.model
+    def generate_report(self, ir_report, docids, data=None):
+        """
+        Generate and validate XML report. Use incoming `ir_report` settings
+        to setup encoding and XMl declaration for result `xml`.
+
+        Methods:
+         * `_get_rendering_context` `ir.actions.report` - get report variables.
+         It will call `_get_report_values` of report's class if it's exist.
+         * `render_template` of `ir.actions.report` - get report content
+         * `validate_report` - check result content
+
+        Args:
+         * ir_report(`ir.actions.report`) - report definition instance in Odoo
+         * docids(list) - IDs of instances for those report will be generated
+         * data(dict, None) - variables for report rendering
+
+        Returns:
+         * str - result content of report
+         * str - `"xml"`
+
+        Extra Info:
+         * Default encoding is `UTF-8`
+        """
+        # collect variable for rendering environment
+        if not data:
+            data = {}
+        data.setdefault("report_type", "text")
+        data = ir_report._get_rendering_context(docids, data)
+
+        # render template
+        result_bin = ir_report.render_template(ir_report.report_name, data)
+
+        # prettify result content
+        # normalize indents
+        parsed_result_bin = minidom.parseString(result_bin)
+        result = parsed_result_bin.toprettyxml(indent=" " * 4)
+
+        # remove empty lines
+        utf8 = "UTF-8"
+        result = "\n".join(
+            line for line in result.splitlines() if line and not line.isspace()
+        ).encode(utf8)
+
+        content = etree.tostring(
+            etree.fromstring(result),
+            encoding=ir_report.xml_encoding or utf8,
+            xml_declaration=ir_report.xml_declaration,
+            pretty_print=True,
+        )
+
+        # validate content
+        xsd_schema_doc = ir_report.xsd_schema
+        self.validate_report(xsd_schema_doc, content)
+        return content, "xml"
+
+    @api.model
+    def validate_report(self, xsd_schema_doc, content):
+        """
+        Validate final report content against value of `xsd_schema` field
+        ("XSD Validation Schema") of `ir.actions.report` via `etree` lib.
+
+        Args:
+         * xsd_schema_doc(byte-string) - report validation schema
+         * content(str) - report content for validation
+
+        Raises:
+         * odoo.exceptions.ValidationError - Syntax of final report is wrong
+
+        Returns:
+         * bool - True
+        """
+        if xsd_schema_doc:
+            # create validation parser
+            decoded_xsd_schema_doc = b64decode(xsd_schema_doc)
+            parsed_xsd_schema = etree.XML(decoded_xsd_schema_doc)
+            xsd_schema = etree.XMLSchema(parsed_xsd_schema)
+            parser = etree.XMLParser(schema=xsd_schema)
+
+            try:
+                # check content
+                etree.fromstring(content, parser)
+            except etree.XMLSyntaxError as error:
+                raise ValidationError(error.msg)
+        return True
+
+    @api.model
+    def _get_report_values(self, docids, data=None):
+        """
+        Allow to generate extra variables for report environment.
+
+        Args:
+         * docids(list) - IDs of instances for those report will be generated
+         * data(dict, None) - variables for report rendering
+
+        Returns:
+         * dict - extra variables for report render
+        """
+        if not data:
+            data = {}
+        return data
diff --git a/report_xml/static/description/index.html b/report_xml/static/description/index.html
index a7e4d0f6..80d34de0 100644
--- a/report_xml/static/description/index.html
+++ b/report_xml/static/description/index.html
@@ -367,7 +367,7 @@ ul.auto-toc {
 !! This file is generated by oca-gen-addon-readme !!
 !! changes will be overwritten.                   !!
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
-<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/reporting-engine/tree/12.0/report_xml"><img alt="OCA/reporting-engine" src="https://img.shields.io/badge/github-OCA%2Freporting--engine-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/reporting-engine-12-0/reporting-engine-12-0-report_xml"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/143/12.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/reporting-engine/tree/13.0/report_xml"><img alt="OCA/reporting-engine" src="https://img.shields.io/badge/github-OCA%2Freporting--engine-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/reporting-engine-13-0/reporting-engine-13-0-report_xml"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/143/13.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
 <p>This module was written to extend the functionality of the reporting engine to
 support XML reports and allow modules to generate them by code or by QWeb
 templates.</p>
@@ -404,22 +404,25 @@ installed it’s probably because there is another module that depends on it.</p
 <p>This module is intended as a base engine for other modules to use it, so no direct result if you are a user.</p>
 <div class="section" id="if-you-are-a-developer">
 <h2><a class="toc-backref" href="#id3">If you are a developer</a></h2>
-<p>To learn from an example, just check the <a class="reference external" href="https://github.com/OCA/reporting-engine/tree/12.0/report_xml_sample">sample module</a>.</p>
+<p>To learn from an example, just check the <a class="reference external" href="https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/demo_report.xml">demo report</a>.</p>
 <p>To develop with this module, you need to:</p>
 <ul class="simple">
 <li>Create a module.</li>
 <li>Make it depend on this one.</li>
-<li>Follow <a class="reference external" href="https://www.odoo.com/documentation/12.0/reference/reports.html">instructions to create reports</a> having in mind that the
-<tt class="docutils literal">report_type</tt> field in your <tt class="docutils literal">ir.actions.report.xml</tt> record must be
+<li>Follow <a class="reference external" href="https://www.odoo.com/documentation/13.0/reference/reports.html">instructions to create reports</a> having in mind that the
+<tt class="docutils literal">report_type</tt> field in your <tt class="docutils literal">ir.actions.report</tt> record must be
 <tt class="docutils literal"><span class="pre">qweb-xml</span></tt>.</li>
 </ul>
-<p>In case you want to create a <a class="reference external" href="https://www.odoo.com/documentation/12.0/reference/reports.html#custom-reports">custom report</a>, the instructions remain the same
+<p>In case you want to create a <a class="reference external" href="https://www.odoo.com/documentation/13.0/reference/reports.html#custom-reports">custom report</a>, the instructions remain the same
 as for HTML reports, and the method that you must override is also called
 <tt class="docutils literal">_get_report_values</tt>, even when this time you are creating a XML report.</p>
-<p>You can make your custom report inherit <tt class="docutils literal">report_xml.xsd_checked_report</tt>, name
-it like your XML <tt class="docutils literal">&lt;template&gt;</tt> id prepended by <tt class="docutils literal">report.</tt>, add a <tt class="docutils literal">xsd()</tt>
-method that returns a XSD in a string, and have XSD automatic checking for
+<p>You can make your custom report inherit <tt class="docutils literal">report.report_xml.abstract</tt>, name
+it in such way <tt class="docutils literal"><span class="pre">report.&lt;module.report_name&gt;</span></tt>. Also you can add a XSD file for
+report validation into <tt class="docutils literal">xsd_schema</tt> field of your report (check
+<a class="reference external" href="https://github.com/OCA/reporting-engine/blob/13.0/report_xml/demo/report.xml">report definition</a>) and have XSD automatic checking for
 free.</p>
+<p>You can customize rendering process and validation way via changing logic of
+<tt class="docutils literal">generate_report</tt> and <tt class="docutils literal">validate_report</tt> methods in your report class.</p>
 <p>You can visit <tt class="docutils literal"><span class="pre">http://&lt;server-address&gt;/report/xml/&lt;module.report_name&gt;/&lt;ids&gt;</span></tt>
 to see your XML report online as a web page.</p>
 <p>For further information, please visit:</p>
@@ -434,7 +437,7 @@ to see your XML report online as a web page.</p>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/reporting-engine/issues">GitHub Issues</a>.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
-<a class="reference external" href="https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_xml%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<a class="reference external" href="https://github.com/OCA/reporting-engine/issues/new?body=module:%20report_xml%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
 <p>Do not contact contributors directly about support or help with technical issues.</p>
 </div>
 <div class="section" id="credits">
@@ -443,15 +446,28 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <h2><a class="toc-backref" href="#id6">Authors</a></h2>
 <ul class="simple">
 <li>Tecnativa</li>
+<li>Avoin.Systems</li>
 </ul>
 </div>
 <div class="section" id="contributors">
 <h2><a class="toc-backref" href="#id7">Contributors</a></h2>
-<ul>
-<li><p class="first">Enric Tobella &lt;<a class="reference external" href="mailto:etobella&#64;creublanca.es">etobella&#64;creublanca.es</a>&gt;</p>
+<ul class="simple">
+<li>Enric Tobella &lt;<a class="reference external" href="mailto:etobella&#64;creublanca.es">etobella&#64;creublanca.es</a>&gt;</li>
+<li><dl class="first docutils">
+<dt><a class="reference external" href="https://www.tecnativa.com">Tecnativa</a>:</dt>
+<dd><ul class="first last">
+<li>Jairo Llopis</li>
+</ul>
+</dd>
+</dl>
 </li>
-<li><p class="first"><a class="reference external" href="https://www.tecnativa.com">Tecnativa</a>:</p>
-<p>Jairo Llopis</p>
+<li><dl class="first docutils">
+<dt><a class="reference external" href="https://avoin.systems/">Avoin.Systems</a>:</dt>
+<dd><ul class="first last">
+<li>Tatiana Deribina</li>
+</ul>
+</dd>
+</dl>
 </li>
 </ul>
 </div>
@@ -468,7 +484,7 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>
-<p>This module is part of the <a class="reference external" href="https://github.com/OCA/reporting-engine/tree/12.0/report_xml">OCA/reporting-engine</a> project on GitHub.</p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/reporting-engine/tree/13.0/report_xml">OCA/reporting-engine</a> project on GitHub.</p>
 <p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
 </div>
 </div>
diff --git a/report_xml/static/src/js/report/action_manager_report.js b/report_xml/static/src/js/report/action_manager_report.js
index ef7eff4a..d2955f42 100644
--- a/report_xml/static/src/js/report/action_manager_report.js
+++ b/report_xml/static/src/js/report/action_manager_report.js
@@ -1,19 +1,18 @@
-odoo.define('report_xml.ReportActionManager', function (require) {
-    'use strict';
+odoo.define("report_xml.ReportActionManager", function(require) {
+    "use strict";
 
-    var ActionManager = require('web.ActionManager');
+    var ActionManager = require("web.ActionManager");
 
     ActionManager.include({
-        _executeReportAction: function (action, options) {
-            if (action.report_type === 'qweb-xml') {
-                return this._triggerDownload(action, options, 'xml');
+        _executeReportAction: function(action, options) {
+            if (action.report_type === "qweb-xml") {
+                return this._triggerDownload(action, options, "xml");
             }
             return this._super(action, options);
         },
-        _makeReportUrls: function (action) {
+        _makeReportUrls: function(action) {
             var reportUrls = this._super(action);
-            reportUrls.xml = reportUrls.text.replace(
-                '/report/text/', '/report/xml/');
+            reportUrls.xml = reportUrls.text.replace("/report/text/", "/report/xml/");
             return reportUrls;
         },
     });
diff --git a/report_xml/tests/test_report_xml.py b/report_xml/tests/test_report_xml.py
index af34a036..365b1e7e 100644
--- a/report_xml/tests/test_report_xml.py
+++ b/report_xml/tests/test_report_xml.py
@@ -13,7 +13,7 @@ class TestXmlReport(common.TransactionCase):
         report = report_object._get_report_from_name(report_name)
         docs = self.env["res.company"].search([], limit=1)
         self.assertEqual(report.report_type, "qweb-xml")
-        rep = report.render(docs.ids, {})
-        root = etree.fromstring(rep[0])
-        el = root.xpath("/root/user/name")
+        result_report = report.render(docs.ids, {})
+        result_tree = etree.fromstring(result_report[0])
+        el = result_tree.xpath("/root/user/name")
         self.assertEqual(el[0].text, docs.ensure_one().name)
diff --git a/report_xml/views/ir_actions_report_view.xml b/report_xml/views/ir_actions_report_view.xml
new file mode 100644
index 00000000..325a1421
--- /dev/null
+++ b/report_xml/views/ir_actions_report_view.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="ir_actions_report_view_form_report_xml" model="ir.ui.view">
+        <field name="name">ir.actions.report.view.form.report.xml</field>
+        <field name="model">ir.actions.report</field>
+        <field name="inherit_id" ref="base.act_report_xml_view" />
+        <field name="arch" type="xml">
+            <button name="associated_view" position="attributes">
+                <attribute name="attrs">{
+                    'invisible': [
+                        ('report_type', 'not in', ('qweb-pdf', 'qweb-html', 'qweb-text', 'qweb-xml')),
+                    ],
+                }</attribute>
+            </button>
+            <xpath expr="//page[@name='advanced']/group" position="after">
+                <group
+                    name="xml_reports"
+                    string="XML Rreport Settings"
+                    attrs="{
+                        'invisible': [
+                            ('report_type', '!=', 'qweb-xml')
+                        ],
+                    }"
+                >
+                    <field name="xsd_schema" />
+                    <field name="xml_encoding" />
+                    <field name="xml_declaration" />
+                </group>
+            </xpath>
+        </field>
+    </record>
+</odoo>
diff --git a/report_xml/views/ir_actions_views.xml b/report_xml/views/ir_actions_views.xml
deleted file mode 100644
index 38c5aa49..00000000
--- a/report_xml/views/ir_actions_views.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<odoo>
-    <record id="act_report_xml_view" model="ir.ui.view">
-        <field name="name">ir.actions.report.report.xml</field>
-        <field name="model">ir.actions.report</field>
-        <field name="inherit_id" ref="base.act_report_xml_view"/>
-        <field name="arch" type="xml">
-            <button name="associated_view" position="attributes">
-                <attribute name="attrs">{'invisible':[('report_type', 'not in', ['qweb-pdf', 'qweb-html', 'qweb-text', 'qweb-xml'])]}</attribute>
-            </button>
-        </field>
-    </record>
-</odoo>
diff --git a/report_xml/views/webclient_templates.xml b/report_xml/views/webclient_templates.xml
index c8997ff7..417786ac 100644
--- a/report_xml/views/webclient_templates.xml
+++ b/report_xml/views/webclient_templates.xml
@@ -2,7 +2,10 @@
 <odoo>
     <template id="report_xml.assets_backend" inherit_id="web.assets_backend">
         <xpath expr="." position="inside">
-            <script type="text/javascript" src="/report_xml/static/src/js/report/action_manager_report.js"/>
+            <script
+                type="text/javascript"
+                src="/report_xml/static/src/js/report/action_manager_report.js"
+            />
         </xpath>
     </template>
 </odoo>