Yes, there is a data exchange application created to support Sharp and Casio devices. It's called XLink and it can be downloaded from the official website. However, on the Compatibility list, the 6800 model appears to have no XLink support, but as the developer said, the information is not accurate or correct. That was based on various versions and tests which means it's also possible for the application to work normally. Just give it a try by downloading the software.
