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XTG File

What are XTG files and how to open them

Are you having problems opening an XTG file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your XTG files.

What is an XTG file?

XTG files have multiple uses, and EXtensible TreeGraph Format is one of them. Read more about the other uses further down the page.

EXtensible TreeGraph Format

XTG, short for extensible TreeGraph format, is a type of XML document utilized by TreeGraph 2 to read and write data.

TreeGraph 2 is an open-source application used for creating and editing phylogenetic trees, which allows annotations to be attached to nodes or branches. It also supports various graphical formats and editing operations. Many types of data, including tables and BayesTraits outputs, can be imported into a tree format. An important characteristic of this is the ability to compare and combine different topologies by interactive means.

How to open XTG files

We have identified one XTG opener that is compatible with this specific type of XTG file.

Programs that open EXtensible TreeGraph Format files


Last updated: February 24, 2023

All known file formats using extension .XTG

While EXtensible TreeGraph Format is a popular type of XTG-file, we know of 2 different uses of the .XTG file extension. Different software may use files with the same extension for different types of data.

QuarkXPress Tags

We know that one XTG format is QuarkXPress Tags. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

XTG opener for Windows

We have identified one XTG opener that is compatible with this specific type of XTG file.


Various apps that use files with this extension

These apps are known to open certain types of XTG files. Remember, different programs may use XTG files for different purposes, so you may need to try out a few of them to be able to open your specific file.

QuarkXPress PassportQuarkXPress PassportUser submitted
QuarkXPress11.1.0.0r0QuarkXPress11.1.0.0r0User submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about XTG file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.