Xineo XIL (XML Import Langage) defines an XML language for transforming various record-based data sources into XML documents, and provides a fully functional XIL processing implementation. This implementation has built-in support for relational (via JDBC) and structured text (like CSV) sources, and is extensible thanks to the public API, that permits synamic integration of new data source implementations. It is released under LGPL licence. See the project's home for more info.