According to Wikipedia, XMI support is provided by “Altova UModel, ArgoUML, ARIS Toolset, Artisan Studio, BOUML, Umbrello, Sparx Systems Enterprise Architect, iteraplan, MagicDraw, SAP BI, Visual Paradigm, Eclipse Process Framework Composer, Rational Software Architect, Rational System Architect / Telelogic System Architect, StarUML, Pentaho, Innovator, UML2 Project (Eclipse MDT), JUDE”.