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HHP File

What are HHP files and how to open them

Are you having problems opening a HHP file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a HHP file?

A .HHP file is a Microsoft HTML Help Project file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open HHP files

Important: Different programs may use files with the HHP file extension for different purposes, so unless you are sure which format your HHP file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested five different HHP openers which you will find listed below.

Last updated: October 19, 2021

Various apps that use files with this extension

These apps are known to open certain types of HHP files. Remember, different programs may use HHP files for different purposes, so you may need to try out a few of them to be able to open your specific file.

HTML Help WorkshopHTML Help WorkshopUser submitted
HTML HelpHTML HelpUser submitted
RoboHelp HTMLRoboHelp HTMLUser submitted
Help EditorHelp EditorUser submitted
Happy HarvesterHappy HarvesterUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about HHP file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.