A dem file extension is related to the Creator Simulator, an original fault simulator. A dem file contains some kind of temporary data.
DEM file extension - Creator Simulator temporary data
What is dem file? How to open dem files?
File type specification:
The dem file extension is also used by Creator Simulator, an original fault simulator, created by Tufts University's Department of Electrical and Computer Engineering.
It is a discrete-event concurrent fault simulator, meaning that it evaluates changes in the circuit only at specified time instances, but is able to evaluate several faults at once. Creator is a single-level simulator, meaning that it can only run simulations on gate level or behavioral models.
The dem files are generated for temporary purposes.
This dem file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.