Riva Slider comes with great backup functionality. Check out the two different kinds below.

All Settings

Via the ‘Global Settings’ menu, you can export all of your plugin settings (including slideshows) into a .txt file which your browser will download. To restore the plugin at any time, simply paste the code from this .txt file into the ‘Import’ text-box and all of the settings will be extracted from it. This even works if you import settings from a previous version of the plugin. Brilliant!