Dem extension is associated with Digital Elevation Model File. You can open dem files with ArcView software.

* Demo versions of some games use dem extension. The list of some of these games:
HalfLife: Counter-Strike
Unreal Tournament

* Arcview : it stands for geographic visualization and map software. The projects which drawed by Arcview software are saved with dem extension.

What to use dem

Arcview by esri

which page related to dem file

dem Related Searches

You can check related links about dem fileextension.