EAR - Java Enterprise Archive File is just a simple file extension that you can use on your computer. It is entirely simple and easy to use. It is a platform that anyone can use when it comes to programming different programs and web applications. You just need to make sure that you use programs that contain .JAR as well as .WAR files. You can also use them to run the application in itself. You will also be able to use these files when it comes to .ZIP compressions. There are also many different websites in which you can use to actually download this file extension. It definitely comes in handy when you really need it the most. They have all been developed using the Java EE SDK files.