Did your computer fail to open a HHP file? We explain what they are used for and recommend software that we know can open or otherwise handle your .HHP files.
What is a HHP file?
A .HHP file is a Microsoft HTML Help Project file. Through our analysis of HHP files, we know that one use of the format is Microsoft HTML Help Project. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!
Suggest another file format using extension HHP
While we know of one file format using the .HHP file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .HHP file.
Various HHP file openers, viewers, etc.
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.