Dear Jim,
You can export the head or pressure directly from the 'Data panel' by right-clicking and choosing the 'Export Data' entry. The file menu gives you several file formats (.shp, .dat etc.) to store the data.
Visualizing the water table in phreatic environments is done by plotting the pressure in the current view. I would suggest to use a combination of 3D view and 2D cross-sectional view.
In the 3D case, you can activate the 'Zero Isosurface' of the pressure in the 'View Components', in a 2D cross-section there is a 'Zero Isoline' available. See also the attached picture, where I visualized a strong gradient between an open pit and a river intersected by a sheet piling. Make sure 'Enable Lightning' is active in 3D views.
When you right-click on the 'Zero Isoline' entry in the 'View Components', your are also able to export the plotted isosurface or isolines in different formats and you can reload them as maps in FEFLOW or other software.
