| File Type 1 |
Video Game Demo (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Demo of a commercial video game; typically an in-game recording that serves as an example of the gameplay; used by games such as Half-Life, HalfLife: Counter-Strike, Quake, Hexen, and Unreal Tournament. |
| Program(s) that open dem files |
Mac / Windows: Used by multiple video games |
| File Type 2 |
Digital Elevation Model |
| File Format |
File |
| Common? |
No |
| File Description |
Contains mapping data with elevation information; used by the US Geological Survey. |
| Program(s) that open dem files |
Windows: ESRI ArcView or other GIS software |
|
