First, you need to make sure your computer has Java installed. If you don’t have a Java runtime installed, you can download and install Java from Java.com. Then, you can download MOBAC from the web and extract it somewhere on your local computer. Because MOBAC is a Java application, it doesn’t need to “install” like a conventional app. You simply extract the zip file somewhere on your computer and you can run the ‘Mobile Atlas Creator.exe’ file if you’re on Windows, or double click Mobile_Atlas_Creator.jar if you’re on a Mac.