Dominate is a Python library for creating and manipulating HTML docs
The lxml XML toolkit for Python
Lexbor is development of an open source HTML Renderer library
Cross-platform DICOM implementation
Development toolkit for Web Services and XML data bindings for C & C++
csv2odf can convert csv data to formatted spreadsheets and documents.
XML text markup for ancient documents
Directional Audio File Format
Extract files from unusual archive formats
PySCeS Constraint Based Modelling
Java based XSLT Processor extension for syntax highlighting
Python XML-RPC client for TestLink
Music score editor
Bots is a complete translator for edi: edifact, x12, xml, tradacoms
Automatically extract body content (and other cool stuff) from HTML
JMEDS is a lightweight, modular extendable Java Framework for DPWS.