Additional extension information
| File type: |
Not specified |
| Popularity: |
 Not specified |
| Author: |
Microsoft |
| MIME type: | Not specified |
Files with the extension
.HHK are known as "
MS HTML Help Index".
This file format was added to our database by a visitor to this site, but no additional information was provided.
We have yet to investigate the HHK file extension any further, or there was simply not enough information available at the time to report accurately on the format. If you know how to open HHK files or even how to convert or edit them, please use the form below.
However, it is possible that other file formats exist which also use the
HHK extension, so please
let us know if you do not think the HHK extension matches the file format you are looking for.
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Simply leave a comment using the form below if you:
- Have a question or require assistance
- Know how to open/edit/convert or create these .HHK files
- Know what software is associated with these files