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Since the Land DEM file format is ASCII based, files with the DEM extension can be opened with any text editor.

DEM files contain only surface data used to construct a regularly spaced grid of elevation points needed for terrain rendering. The DEM (Digital Elevation Model) file type is the most popular large area surface file format used by multiple private organizations and by the USGS (U.S. Backed up by a large consortium of partners including Autodesk, Inc., the project resulted in high quality surface data models that enable photorealistic rendering and animations. The "LAND" initiative was aimed at providing a non-proprietary data standard used for storing project information and for transferring it across multiple software packages. Tirol (Austria) was added to the OpenDemSearcher and data links were updated. They can thus be used to create digital terrain models and landforms with the appropriate software. Open Digital Elevation Model (OpenDEM) The Portal for sharing the 3rd. A DEM file was initiated by the USGS (United States Geographical Service) and is generally in the form of a 16bit targa file holding gridded information relation to terrain coordinates.