Notes about the HCU 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 HCU file type is primarily associated with 'HydroCAD Stormwater Modeling System' by HydroCAD Software Solutions LLC. HydroCAD is a Computer Aided Design tool used by Civil Engineers for modeling stormwater runoff.