<p>In OpenLP, go to the Tools -> Open Data Folder... menu item. In the folder window that opens, go to 'songs' folder, and there you will see the songs.sqlite file which contains all the songs. Close down OpenLP before deleting it, and it will be re-created next time you restart OpenLP. However it might be best to rename it instead.</p>
<p>Out of interest, where did you find out about the sample data, where did you get it from?</p>
<p>If you're not going to use a Bible at all, you can delete it. Go to the same data folder as above, go into the Bibles folder, and there you will see the Bible files. In the future we may try and make it remember the last Bible you selected.</p>
<p>You can't delete the Default theme or a Theme which is assigned to a song. But any Themes not in use can be deleted fine, or least it works OK for me. If you want to delete the default theme, just make a different theme the default.</p>
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