This may sound like more trouble than it is worth, but a zip/unzip program is an ESSENTIAL tool, especially if you are going to be using the Internet a lot.
#How to unzip a zip file on a mac install
What if you don't have Windows ME or XP or Apple OS-X? Well you need to download and install a special piece of software that will zip and unzip files. Once you double-click on that file or folder, it should open just as if it were a regular file or folder on your computer. Notice the zipper? That's Windows XP's way of telling you that the file or folder has been zipped. How do you open a ZIP file? If you have Windows ME or XP, or Apple OS X, just double-click on the zip file or folder, which will look something like this: Each of those files are "zipped" so that they take up less hard drive space and therefore will take less time for you to download. For example, in the PowerPoint Files section of my website I've placed about two dozen PowerPoint files you are free to download. What does that mean in English? Well, 'file compression' is just a way of saying 'smushing a file so that it takes up less space on your hard drive' and 'file archiving' is just a way of saying 'making a copy of the original file so that you can put a copy somewhere else.' The file compression part of the ZIP file format is what makes it so popular with web developers.
The ZIP file format allows you to both compress and archive your files. Have you ever had a file on your computer that was so ridiculously large it was all but impossible for you to send it to a friend as an email attachment? Or, even better, have you ever wanted to email someone a BUNCH of different files at the same time but didn't want to go through the tedious process of having to attach the files to the email one at a time? That's where the ZIP file format comes in.
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