Apache Causeway Ext - Wicket Viewer - Excel Download (parent)
· A component for Apache Causeway' Wicket viewer, providing an alternative representation of collections to be downloaded as an Excel spreadsheet.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window causeway-extensions-exceldownload-2.0.0-RC2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.