Opening HHK Files

The HHK file type is primarily associated with HTML Help.

HHK	File extension: HHK
	File type:	Index

What is an HHK file

HHK files mostly belong to HTML Help by Microsoft Corporation. These files store the information needed for the index pane and are in the sitemap format.

How to open an HHK file

You need a suitable software like HTML Help to open an HHK file. You need a suitable software like HTML Help from Microsoft Corporation to open an HHK 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 HHK file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HHK file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HHK Text Viewer

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Trouble Opening a .HHK File? These Steps Will Help

Because .HHK files can originate from different programs, they aren't universally openable with a single application.

Identify the Source: If received from a technical writer or a software documentation workflow, it is likely a Microsoft HTML Help Index file.
Check the Header: Open the file in a text editor to inspect its opening lines.
- Seeing HTML tags like <ul> or <object> implies a standard HTML Help index.
- Seeing unreadable binary data suggests a different, proprietary format.
Use the Original Software: The original program is usually required; try Microsoft HTML Help Workshop, HelpNDoc, or MadCap Flare, or ask the sender if uncertain.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for HHK File Extension

Related files:

hhjk, hhc, hhp, exe, zip, chm, hhs

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: Hhk.File, FileType: Index, AppName: Microsoft® HTML Help Workshop
EXEFile: hhw.exe

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

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

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

Show all 4 listings To Top

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

How to solve problems with HHK files

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