What is a .HCU File And How To Open It – HydroCAD Software Solutions (Visual Guide)

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While downloading files, you might have downloaded a file with the .hcu extension. Perhaps you know what the file is, but you simply don’t know how to open it. In this article we will explain what .hcu file extension is, how to open it and how to work with it.

What is a .HCU file?

The .HCU file extension comes from Hydrograph Units Definitons File. This file extension was developed by HydroCAD Software Solutions. The file is a data related file.

What to know

There are currently 2 software that can open the .hcu file on 1 platform.

How to open a .HCU file?

Below we have written a comprehensive guide on how to open the .HCU file on various operating systems.

How to open a .HCU file on Windows (7, 8, 10)

There are 4 simple steps to open the .hcu file on Windows.

1. The first step is to download the HydroCAD Software Solutions HydroCAD Sampler software. This software will be used for opening the file. Other software that can be used in opening this file is: HydroCAD Software Solutions HydroCAD and HydroCAD Software Solutions HydroCAD Sampler.

Step 2

Step 2: Locating your .HCU file

2. In the second step you need to locate the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Choose “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choose the software and click ok

4. After choosing the “Open with” option, you will have an option to choose the HydroCAD Software Solutions HydroCAD Sampler software you have downloaded. Choose your software and click on “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .HCU file?

If you are still unable to open the .HCU file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .HCU file.hcx – Harvard Graphics, .hcxs – Government of Canada, .hd2 – Bondware, .hd3d – Home Design 3D, .hda – HotDocs. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .HCU file with the HydroCAD Software Solutions HydroCAD Sampler, HydroCAD Software Solutions HydroCAD programs on Windows.