HCP file format description

Many people share .hcp files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .hcp file can be edited, converted or printed with. On this page, we try to provide assistance for handling .hcp files.

1 filename extension(s) found in our database.

.hcp - HydroCAD Project

The HCP project files are related to HydroCAD. The HCP file is a HydroCAD Project. HydroCAD is a Computer Aided Design (CAD) tool used by civil engineers for modeling stormwater runoff.

Project files
- / -
HydroCAD Project related extensions:
HydroCAD Prefab Chamber
HydroCAD Hydrograph File
HydroCAD IDF Curve
HydroCAD Rainfall Curve Data
HydroCAD Units Definition
HydroCAD Unit Hydrograph Definitions

Naturally, other applications may also use the .hcp file extension. Even harmful programs can create .hcp files. Be especially cautious with .hcp files coming from an unknown source!

Can't open a .hcp file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .hcp file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bcp, chp, cp, gcp, hc, hcl, hco, hdp, hfp, hp, hpc, hsp, hvp, hxp, jcp

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

SmartWare Communication Profile Data
Nikon Picture Control
Microsoft SQL Server Data Replication Data File
IBM HATS Connection Data
Microsoft Exchange ESE Checkpoint File
Autodesk AutoCAD Template Control Pointer

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> HCP file