.HCI File Extension
HydroCAD IDF Data File
| Developer | HydroCAD Software Solutions | 
| Popularity | 
 
4.0  |  2 Votes  | 
What is an HCI file?
Data file used by HydroCAD, a stormwater drainage solutions modeling program; contains Intensity-Duration-Frequency (IDF) data for the rainfall intensity over a specified period of time; used in conjunction with several other data files that comprise a HydroCAD project.
Programs that open HCI files
Windows