\documentclass{invoice-class}
\ConfigPrefix{duck-}
\InputFile{duck-invoice.csv}
\waybill{8273205776}
\carrier{FedEx}
\destination{Brazil}
\toaddress{Paulo Cereda\\Rua Bonita\\Cidade de Patos\\SP\\Brazil}
\weight{1}{1}
\packages{1}
\shippingcost{40.00}
\packingcost{0.00}
\insurancecost{10.00}
\begin{document}
\printinvoice
\end{document}