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 another ...

Of all the "under the hood" components of Mac OS X, my personal favorite is preferences files. Why? For starters, they are important. They potentially affect every application you use, from the Finder ...

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

Because of its Unix heritage, Mac OS X is a true multi-user operating system from the ground up. Yet some people have used Mac OS X for many months without fully realizing what this means -- as the ...

In my last tutorial I introduced you to Windows 2000's Disk Probe, a utility that lets you modify almost anything on your system's hard disk on a sector-by-sector basis. Now it's time to start using ...

Is there an easy way to open Keynote files on a Windows PC? My colleagues all use Macs. Keynote may well be the best presentation software package you can buy – or get for free with any new Mac – but ...