GML File

What are GML files and how to open them

Are you having problems opening a GML file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a GML file?

GML files have multiple uses, and Geography Markup Language Data is one of them. Read more about the other uses further down the page.

Geography Markup Language Data File

GML stands for Geographical Markup Language and is most commonly associated with the Galdos Systems Open Geospatial Consortium software. This software is used by geographers to store geographical data. The GML files allow the geographical data to be transferred in a standard interchangeable format.

How to open GML files

Important: Different programs may use files with the GML file extension for different purposes, so unless you are sure which format your GML file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested nine different GML openers which you will find listed below.

Last updated: March 10, 2023

All known file formats using extension .GML

While Geography Markup Language Data File is a popular type of GML-file, we know of 3 different uses of the .GML file extension. Different software may use files with the same extension for different types of data.

Graphlet Graph File

Graphlet GML, short for Graph Modelling Language, is a text-based file format for storing a single directed or undirected graph.

SerenityOS GUI Markup Language

We know that one GML format is SerenityOS GUI Markup Language. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

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

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 GML file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.