Notes about the CDE file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The CDE file type is primarily associated with 'CADKEY' by Kubotek USA Inc.. CDE files are used to create customized commands and functions within CADKEY application which is developed by KubotekUSA. CADKEY is a popular CAD 3D wireframe product.