HCU file format description

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

2 filename extension(s) found in our database.

.hcu - Harmony Controller Update Data

The HCU other files are related to Harmony Remote. The HCU file is a Harmony Controller Update Data. Logitech Harmony Remote is a line of universal remote controls manufactured and sold by Logitech.

Harmony Remote
Other files
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Harmony Controller Update Data related extensions:
HP iL02 Firmware Update Data
Dropbox Shared Folder Tracker
Bitdefender Antivirus Quarantined Data
TuneUp Utilities Boot Screen
Ashampoo Magical Security Encrypted File
iPhone / iPod Firmware Upgrade

.hcu - HydroCAD Units Definition

The HCU data files are related to HydroCAD. The HCU file is a HydroCAD Units Definition. HydroCAD is a Computer Aided Design (CAD) tool used by civil engineers for modeling stormwater runoff.

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

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

Can't open a .hcu 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 .hcu file extension is often given incorrectly!

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

chu, cu, hc, hch, hci, hcj, hck, hdu, hu, mcu, tcu

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

High Resolution Continuous-tone TIFF Image
Infinity Engine 1.0 User Interface Description
CUDA Source Code
my Knowledge Explorer Change Unit
HydroCAD IDF Curve
CU-SeeMe Data

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 >> HCU file