The first step is to terminate all Sheetster instances. Once terminated, you should remove all of the files.
To uninstall the server, use the procedure shown below:
# killall -9 java # rm -rf /opt/MindTouch_Sheetster_AddOn/ # rm -rf /var/www/dekiwiki/deki/plugins/docsfree_sheetster/ # rm /etc/init.d/sheetster # rm /var/run/sheetster.pid # rm /var/lock/subsys/sheetster