Geography Markup Language File
|Developer:||Open Geospatial Consortium|
Files with the .gml file extension are Geography Markup Language files, these are an extension of the xml file format which was created by the Open Geospatial Consortium and is used to describe geographical features, this format is an ISO Standard which is listed as ISO 19136:2007.
Another feature of the gml file extension is that it can be used as a language for modelling as well as a format for interchanging geographic transactions.
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How to open .gml files?
Software to open .gml files
What are .gml files