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TreeView is a program to view phylogenetic trees in your computer. It can read and display some of the most used tree file formats, such as NEXUS, PHYLIP, Hennig86, NONA, MEGA, and ClustalW/X. Once loaded in the application, you can choose to view the tree as a Radial Tree, a Cladogram (or a Rectangular Cladogram) or a Phylogram.