A daily updated filename extension database!

HHP file extension

The table below provides useful information about the .hhp file extension. It answers questions such as:

  • What is the .hhp file?
  • What program do I need to open a .hhp file?
  • How can the .hhp file be opened, edited or printed?
  • How can I convert .hhp files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ HTML Help Project

HHP file is a HTML Help Project. An HTML help project (HHP) file is a text file that brings together all the elements of a help project. It contains the data HTML Help Workshop needs to combine topic (.html, .htm), image (.jpeg, .gif, .png), index (.hhk), and contents (.hhc) files into a single compiled help (.chm) file.
Category: Project files
Application: Microsoft HTML Help
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HHP aliases:
HHP related links:
HHP related extensions:
Windows Help File

Hypertext Markup Language Document

Compiled HTML Help

HTML Help Table of Contents

HTML Help AutoIndex

HTML Help Stop Words

Microsoft Sharepoint Site Template

HTML Help Collection

Microsoft Sharepoint Web Part Description

Microsoft Sharepoint Document Set Index

Other types of files may also use the .hhp file extension.

🚫 The .hhp file extension is often given incorrectly!

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

bhp, ghp, hbp, hgp, hh, hhl, hmp, hp, hph, htp, hup, hyp, mhp, nhp, thp

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

htp Source File
HP Graphic Language Document
BHP Survey Tool Data
HyperLynx BoardSim PCB Layout
Designer Graphics System 2 Data
HTML Help Header File
GitHub Software Package
SmartWare HYP Dictionary Data
Visual Basic Data
HBPredicT Output

🔴 Can't open a .hhp 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .hhp file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .hhp file extension, write to us!

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Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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