@MoayyadRayan,

I have been struggling to figure how to make reports myself just a few days ago. I learned the basics of creating Qweb reports and this is what I have learned so far:

Let's say you want to create a report for your model named : moayad_model. and you want the report to display the fields: field_one and field_two.

1) Inside the folder of "moayad_model" create a new xml file (for example: moayad_report_view.xml) with this xml code in it:

<?xml version="1.0"?>
<openerp>
<data>

<!--#########################################################################
 Section 1: The below section specifies the paper format of the report you want 
 to create and its dimensions and orientation. 
 
##########################################################################--->

<record id="moayyadrayyn_paperformat_euro_lowmargin" model="report.paperformat">
        <field name="name">Moayyad's European A4 low margin</field>
        <field name="default" eval="True" />
        <field name="format">A4</field>
        <field name="page_height">0</field>
        <field name="page_width">0</field>
        <field name="orientation">Portrait</field>
        <field name="margin_top">5</field>
        <field name="margin_bottom">5</field>
        <field name="margin_left">5</field>
        <field name="margin_right">5</field>
        <field name="header_line" eval="False" />
        <field name="header_spacing">0</field>
        <field name="dpi">80</field>
    </record>

<!--#########################################################################
Section 2: In this section you specify the model you are creating this report for. in the
name and file attributes write them in this format:

the folder of your model.the name of the file of your report
 
##########################################################################--->

    <report 
        id="action_moayad_report"
        model="moayadmodel" 
        string="Moayad's Report"
        report_type="qweb-pdf"
        name="moayad_model.moayad_report" 
        file="moayad_model.moayad_report" 
    />
    
    
<!--#########################################################################
Section 3: This is the action record for the report. 
for record "id" use the id of the report you put in section 2 
for "ref" use the id of the paper format you put in section 1
 
##########################################################################--->    

    <record id="action_moayad_report" model="ir.actions.report.xml">
        <field name="paperformat_id" ref="moayyadrayyn_paperformat_euro_lowmargin"/>
    </record>

</data>
</openerp>

2) create another xml file called moayad_report.xml and place it inside your model directory (moayad_model) with the following code in it:

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <template id="moayad_report">
            <t t-call="report.html_container">
                <t t-foreach="docs" t-as="o">
                    <div class="col-xs-12">
                        <t t-call="report.external_layout">
                            <div class="page">
                            <!--################Start body of the report in HTML ###########-->
                            <!--################You can use simple HTML to add organize the fields as you wish
                                                them to appear in your report###########-->
                            <h2>Moayad Report Title</h2>
                                <table>
                                    <tr>
                                        <td>
                                                <h5 t-field="o.field_one"/>
                                                <h5 t-field="o.field_two"/>
                                        </td>
                                    </tr>
                                </table>
                            <!--################End body of the report in HTML###########-->
                            </div>
                        </t>
                    </div>
                </t>
            </t>
        </template>
    </data>
</openerp>

3) add both xml files you created to "update_xml" definition of the file  __openerp__.py 

That's it. Now after you install your module, the "print" drop down menu will be available for you to view.

I hope this helps you out. Again, I am just a newbi and I am sure someone here with more expertise would help you even more.

Salam

It is not for Libre-Office or Aeroo, but it is an interesting Tutorial for the actual standard way to create reports in Odoo:
http://blog.emiprotechnologies.com/create-qweb-report-odoo/

ok can you please provide any helpfull taturial or links ? google is not that enought yet i can't find help .