Open the Apps menu in your Odoo and install the module "DOCX report".

To create a new report in the user interface, we need to activate the developer mode.

Now you should go back to the settings. Click "Technical", scroll down the list, and click "Reports".

1. To get model attributes like model field values, use the word "docs" + (dot) + model field name.

2. To call a model method that returns a value, use the word "record" + . (dot) + model method name + () to call it.

3. Use double curly braces "{{ }}" to call methods and attributes.

4. Use curly braces with the percentage sign "{% %}" to create local variables and use loops and if conditions.

When the Reports list view will be opened, click the "New" button to create a new report.

1. To create a new report, you should fill out the form.

2. "Action name" is the name that will be shown in the Print menu of the model.

3. "Report Type" should be DOCS or DOCX (PDF). The gotenberg service is used to create pdf files. To use it, you need to install the Odoo module to communicate with the service and enter the access details.

4. "Model name" is the name of the model. Fields and methods will be derived from this model.

5. "Report docx template" is the template file that was created at step 4.

6. "Printed report name" is the name of the file after generation.

7. To add this report to the Print menu, you should click on the button "Add in the Print".

1. Custom fields are needed to get data that is not in the fields of the model associated with the report. Thanks to them, you can get data from other models, for example, through the reference fields of the current model.

2. To create a custom field you should click "Custom Fields" menu on the form and then click "Add a line"

3. After that, write your Python code for the new variable.

4. In the template, custom fields are available by the name specified in the "tech_name" field of the custom field entry. For exapmle: {{ contract_date }}.

After printing the report the file will be saved. The information from the model will complete the template.

If you want to make the report from the Python code, you should make an ir.action.report record and an ir.attachment record that is connected to the first one. Add the path to the Docx template from step 4.