Uma alternativa é incorporar uma imagem do código-fonte:
Da lista de discussão dos usuários do OpenOffice:
I expect that you will not find a fully automated working solution for your specific problem.
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In a perfect world I suppose that you will setup a repository which you can then poll. Your document must then be set to update itself based on the files. Come to think of it, perhaps you can wet something so that the document can generate itself in some specified format. Seems doable if you have the skills.