Data from OpenERP to XML

I would need some one to export data from OpenERP (opensource ERP php+PostgreSQL) either directly from database or using OpenERP API. Complete server description is that Magento is a webshop and from there orders are stored into OpenERP. This part is already done. But we would need data from OpenERP to be exported for Logistic partner who actually ships items. And they require data in XML format. While bidding please include word: OpenERP so I can see that you are actually intrested in this project.