The Sims 4 Game Data Format
Game Files
mime-type/not-avalible
10/09/2021
To edit HHI file, we strongly recommend installing software that works with HHI files. There are many tools known as HHI Online Editors, but it is not certain that they operate in a way that keeps the data contained in the file safe.
Remember, that not all of the mentioned programs will allow you to edit the HHI file. Additional information about the HHI file extension can be found here.
This is definitely the surest way. Use any of the programs that support the HHI file to check if it allows you to edit the file. The most proven method is to download the installer from the developer's website. Links to the websites of software producers can be found on the software subpages. Examples of programs cooperating with HHI files, which make it possible to edit it.
And here is the full list of programs supporting the HHI file
Most of the file formats are simply text format saved under a different extension - so you can open them e.g. with Windows Notepad However, such manual editing of the HHI file or any other file may result in damage to the file. When you save the changes, you may no longer open the HHI file. By far the safest way is to use file editing programs that works with the HHI extension.
It seems that one of the software on the list must be able to edit the HHI files. However, if for some reason you did not find this option, you can try using tools prepared by external websites. Verified websites with the option to edit the file in the HHI format below.
Free Online File Edit Service
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