NeXML is an exchange standard for representing phyloinformatic data.[1] It was inspired by the widely used Nexus file format but uses XML to produce a more robust format for rich phylogenetic data. Advantages include syntax validation, semantic annotation, and web services.
The format is broadly supported and has libraries in many popular programming languages for bioinformatics.
Key features
XML-based syntax with formal schema validation
Support for rich, structured metadata
Semantic annotation using controlled vocabularies and ontologies
Explicit representation of phylogenetic trees, character matrices, and taxa
Extensibility without breaking backward compatibility
