Notes about the ET 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 ET file type is primarily associated with 'ETwin Electrodos de Tierra' by Procedimientos-Uno, S.L.. ETwin is a program for the design of the grounding of medium sized electrical tranformers. The design includes both network and grounding pikes. The ET file contains all the specific project data.. [Spanish site]