.HCU File Extension
File TypeHydrograph Units Definitons File
What is an HCU file?
File used by HydroCAD, a CAD program that helps to design water drainage solutions; contains unit definitions for the HydroCAD project in text format; represents one of several files that comprise a HydroCAD project.
NOTE: Pre-installed HCU files should not be modified since they contain standard definitions for English and Metric systems.