Keikai Spreadsheet is an open source embeddable web-based online spreadsheet that delivers the rich functionality of Excel within browsers using pure Java. With embeddable Excel functionality, developers are able to create interactive, collaborative, and dynamic enterprise applications easily.
Run the following Maven command ...
mvn jetty:run
... or separate compile/run commands.
mvn compile
mvn jetty:run -pl kkapp
And visit http://localhost:8080/keikai-app-oss/