Apple Help Viewer supports various file extensions. It allows you to perform various actions with files, e.g. open, edit or convert a file in a given format. The file extensions listed below are used by Apple Help Viewer. The Apple Help Viewer software is dedicated to handling these file types, so to be able to work with them fully, you should install it.
File types which can be supported by Apple Help Viewer. The files listed below are not always the formats you can edit with Apple Help Viewer. Sometimes it may be a file containing settings for software that you are not editing. Go to the subpage of the selected extension to get more information about it.
The most secure solution - the website of the creator of Apple Help Viewer. Not every manufacturer provides software installers on their website, but they always advise where to download them safely. Using unreliable sources can download viruses or other malicious software.
Go to Apple Help Viewer developer website
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