1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor
Rust high performance xml reader and writer
C++ library for creating XLSX files for MS Excel 2007 and above.
Create structured binary files from XML data.
X3D is the open-standard format for 3D graphics scenes on the Web.
eXist-db is a feature rich Open Source native XML database
Relational database replication tool based on XML Schema
XMLUnit provides assertions that help testing code that produces XML.
XML text markup for ancient documents
Converts XML to CSV using a spreadsheet app
Cross-platform C++ libraries with a network/internet focus.