File Compression Technology

Why we need to compress files?
Some times files are too big to be transferred through the Internet or between PCs. This post will help to use the WinZip program to compress files for quick transfer and storage.
What is winzip?
Winzip is used to compress the files into smaller so that they can be easily transfered.WinZip is the one of many programs able to compress files, in this case to what are known as Zip files with the filename extension .zip
How to install winzip?
You can download a trial version of WinZip from www.winzip.com
After the trial period is over you will be reminded to purchase a License to continue using the program.

How to use winzip?
To start the program, double-click the WinZip shortcut on your desktop, or alternatively click on the Start menu then All Programs > WinZip > WinZip.
Click on Use Evaluation Version. You should now see the WinZip Wizard, which helps you perform the most common tasks associated with WinZip. Click Next and for this example, Create A New Zip File.
Choose a filename such as "ZipTest" which will be saved to the default folder, or use Browse to choose a different folder, enter the filename and click OK.Click Next. Use the Add Files button to add the files you want to compress, or you can click and drag them into the empty box. When you have added the file or files you want to compress into this Zip file, click ZipNow then Finish.
WinZip will close and if you now look in My Documents or whichever folder you specified earlier, you should see a .zip file called "ZipTest". To open this or any other Zip file, in Windows XP you can double-click it as if it were a normal folder. From here you can drag the files out, which will extract them so they can be used as normal.
Alternatively, right-click the file and choose Open With WinZip. Click Evaluation Version and you should see the Wizard again.
Click Next then UnZip or Install from "ZipTest.zip". Click Next and choose a folder to extract the contents of the Zip file to (the default location is a folder called Unzipped in My Documents).
Click Unzip Now. In the folder you specified you should now be able to see the files you originally compressed in the Zip file, extracted and ready to use again. Click Finish in WinZip to close the program.