Mac OS X computers use a default application to open every file type based on its file extension. If you don't want to use the default application when opening a file, you can select "Open With ...

How to change the default apps that open files For a longer-term solution you’ll need to go through individual applications and change them manually.

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may ...

Want to know how to play a weird video file on your Mac? Don’t worry – there’s probably a simple solution. There are dozens of video file formats, with more being added all the time, and it’s ...

This article shows you how to change the icon of any file or folder on your Mac. Apart from adding a bit of personal style to your desktop, there are ...

How to Batch Change File Permissions in Mac OS X. Batch changing your file permissions can save a great deal of time, since you don't have to individually select files to determine who can access ...

Learn how to navigate the Mac terminal and modify file permissions on your Mac computer with this step-by-step guide.

You can convert HEIC files to JPG on your Mac using the Preview app. High Efficiency Image Container (HEIC) files are a relatively new format for images, videos, and multimedia said to have smaller ...