step 1 : -------------------------------------------------------------------------------------------------------          → open open-office.org       → tools menu           → extension manager               → go to -  base_report_designer                    → plugin  →openerp_report_designer.zip   step 2 : ---------------------------------------------------------------------------------------------------------           → restart open-office    step 3 : ----------------------------------------------------------------------------------------------------------        → open a new report        → add a loop ( select your DB)        → add loop as a repeat        → add a field  and make it customize look        → save file as a .sxw  or send to the server   step 4 :  ----------------------------------------------------------------------------------------------------------        → convert .sxw to .rml

       → cd addons/base_report_designer/openerp_sxw2rml

       → $ python openerp_sxw2rml.py ../../exam/report/.sxw > ../../exam/report/.rml   step 5 : -----------------------------------------------------------------------------------------------------------      →  ( in report folder )            → exam.py                  or              copy it from (http://doc.openerp.com/v6.0/developer/3_11_reports/11_1_openoffice_report.html)  

     import time       from report import report_sxw       class exam(report_sxw.rml_parse):            def __init__(self, cr, uid, name, context):                 super(exam, self).__init__(cr, uid, name, context)                 self.localcontext.update({                 'time': time,                 })  report_sxw.report_sxw('report.exam.student', 'exam.student',      'addons/exam/report/exam.rml', parser=exam, header=True)

      → (exam.py , exam.rml , exam.sxw , __init__.py )

       → __init__.py

                   import exam   step 6 : ------------------------------------------------------------------------------------------------------------      (   main exam folder )         → exam_report.xml

<?xml version="1.0"?>  <openerp>          <data>                  <report                          id="exam_student"                          string="Print Exam..."                          model="exam.student"                          name="exam.student"                          rml="exam/report/exam.rml"                          auto="False"                          header="False"/>          </data>  </openerp> -------------------------------------------------------------------------------------------------------------     → __openerp__.py          in update xml add this  →  'exam_report.xml'    --------------------------------------------------------------------------------------------------------------  

  → __init__.py       import report 

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EDIT : HOW TO Customize thai font with Report Designer Module

if we customize report and send to the server it gonna save to database, file system will be ignore.

1. edit report with Report Designer (OpenOffice)
2. save sxw file to file system (example/report/report.sxw)
3. export sxw to rml
4. replace rml file to file system (example/report/report.rml)

PS : Some of report can't reload layout automatically we need to unchecked in Technical Feature