Tato přednáška je v angličtině . Lars Oppermann (Sun Microsystems) explains the basic structure of OpenDocument, an open XML based file file format for office applications, and how standard XML processing tools can be used to create applications beyond the scope of traditional office-productivity applications. We will introduce the OpenDocument package structure and the main package components such as content, styles, and metadata. The package structure can be accessed with standard mechanisms available in a wide range of platforms. We will introduce a set of Java classes that facilitate the access of resources included in an OpenDocument package which are available as part of openoffice.org project. We will show how XSLT can be used to extract specific information from text documents and spreadsheets. Best practices derived from our own work with XSLT on OpenDocument will be provided. We will demonstrate how documents can be used as input to business processes and how such processes can assemble documents from scratch or based on predefined templates. Similar scenarios have previously required the automation of a full office-productivity application. For many scenarios such a solutions neither scaled very well, nor did they always offer the robustness required in a component of a back-end service. Open-standards based file formats thus offer the possibility to efficiently process documents in environments that go beyond the limits of traditional desktop applications. We will also explore practical limitations to the kinds of processing which can be performed outside the context of an application which actually renders the document.