Opening an HHP File

The HHP file type is primarily associated with HTML Help Workshop.

HHP	File extension: HHP
	File type:	Project

What is an HHP file?

HHP files mostly belong to HTML Help Workshop by Microsoft Corporation. Use our "Online HHP Text Viewer" below to analyze your HHP file and to see all text it contains.

How can I open an HHP file?

You need a suitable software like HTML Help Workshop to open an HHP file. You need a suitable software like HTML Help Workshop from Microsoft Corporation to open an HHP file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your HHP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HHP file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HHP Text Viewer

Choose your .hhp file to analyze

or drag and drop it here

Online File Viewer

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.HHP File Not Opening? How to Fix It:

Because .HHP files can originate from different programs, they aren't universally openable.

Identify the Source: If received from a technical writer or software developer, it is likely a Microsoft HTML Help Project file used to build compiled .CHM help documents.
Check the Header: Open the file in a basic text editor or hex viewer to inspect the opening lines.
- Readable text starting with [OPTIONS] indicates a standard help project.
- Magic bytes like "PK" suggest it may be a renamed zip archive.
Use the Original Software: The original program is usually required to open it properly; try Microsoft HTML Help Workshop, HelpNDoc, or FAR HTML, or ask the sender if uncertain.
Use this Webpage: Drag and drop your .HHP file onto this page to detect its format, extract readable metadata, and preview it.

Technical Data for HHP File Extension

Program ID:

Hhp.File

Related files:

hhc, hpp, hhk, htm, hcw, mhp, msdvd

Mime type:

text/plain

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Hhp.File, FileType: HHP File, AppName: Microsoft® HTML Help Workshop
EXEFile: hhw.exe

ProgramID: Hhp.File
EXEFile: %ProgramFiles%\HTML Help Workshop\hhw.exe %1

ProgramID: Hhp.File
EXEFile: D:\Help Tools\HTML Help Workshop\hhw.exe %1

ProgramID: Hhp.File
EXEFile: %ProgramFiles%\Help Workshop\hhw.exe

ProgramID: hhp.file
EXEFile: %ProgramFiles%\RoboHelp Office\RoboHTML\RoboHTML.exe

Show all 5 listings To Top

an hhp Project is a special file format by Microsoft Corporation and should only be edited and saved with the appropriate software.

How to solve problems with HHP files

Associate the HHP file extension with the correct application.
Update your software that should actually open projects. Because only the current version supports the latest HHP file format. Search, therefore, e.g. on the Microsoft Corporation manufacturer website after an available HTML Help Workshop update.
To make sure that your HHP file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .HHP file online - secure, fast, and no downloads needed.