DSG is a CAD file format used by Control Studio, a program for prototyping and simulating electronic systems. DSG file contains data on components and connections between them. DSG files can also hold additional text and graphics for given project.

Data in DSG file cannot be exported into other files and can only be viewed using Control Studio. Current, second version of Control Studio, can be used both for educational purposes and designing professional projects, depending on purchased license. Both types of license are available in paid licensing model.