GEXF (Graph Exchange XML Format) is a language for describing complex networks structures, their associated data and dynamics. Started in 2007 at Gephi project by different actors, deeply involved in graph exchange issues, the gexf specifications are mature enough to claim being both extensible and open, and suitable for real specific applications.
Format: https://gephi.org/gexf/format/index.html
Autres formats pour les graphes: GDF, GML, NET, GraphML, DL, DOT