When you double-click a file on your Mac, the operating system will automatically open the file using the program assigned to that type of file. It is possible, though, to open the file using ...

Even though you can't see them, invisible files are critical to the operation of your Mac. For example, Apple typically makes certain files invisible to reduce the chance that the files are ...

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 ...

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 ...

Every Mac OS X computer includes a local Open Directory database — referred to as a domain — that stores information about local user accounts.

Sometimes you may have an old Mac lying around that you would like to retrieve files from. Thinking it's an easy task, you grab your nearest USB stick only to find the computer does not have any ...

Although Apple's Numbers spreadsheet application cannot open or edit PDF documents, you can still use the program to generate a PDF file through OS X's Print As PDF feature.

Every Mac OS X computer includes a local Open Directory database—referred to as a domain—that stores information about local user accounts.