thanks to the guy who told me bout how to change the zip files to jar files but i still dont understand wot u mean by "renaming" the file

its when you have a file,for example,
football.zip
and you change its extension from zip to jar.then you have a file
football.jar

And as you'll find in many similar topics, if you can't see the file extension (.zip) you'll need to change you folder options.

Open any folder and click on Tool -> Folder Options

On the View tab under Advanced Settings, uncheck the box next to "Hide extensions for known file types".

Then you can rename the file as razbdg says.

Welcome to mobile9 but please try to search in the future.

I always forget to say that about folder options thnx Echo

I always find this FAQ helpful

http://www.mobile9.com/invboard/index.php?showtopic=10242

yes,adonis wrote it real good

Yep, easy to understand.