Global Mapper supports import and export of Land/XML files.
The supported feature types are:
The vertical unit is an option attribute in the Land/XML format. When no unit is specified, Global Mapper will default to loading the vertical as Meters. The unit interpretation can be controlled from the Layer Options Feature Types/Labels/Elevations tab.
The Land/XML export is available from the menu File > Export> Export Vector/Lidar Format...
Specify the types of features to include in the export. The default selection will be made automatically based on available data.
Contours are line features that have one of the Contour feature types specified.
Watersheds are area features that have Watershed identified as the feature type.
Specify the output vertical unit as feet or meters.