Please help!!! What to do with Jar file?

[Emmanuel Bakare]

Please I need urgent help. I have just downloaded the assignment.
What I got was an executable jar file. I don't know how to open it as I double cliked it, but nothing happened.
Your help is greatly appreciated.
Regards,
Emmanuel Bakare

[Max Tomlinson]

First of all, make a copy and put one in a safe place.
Then you can use zip or winzip (windows) to extract the files.