If you have not already downloaded Spider Edit, do so.  Then go to CustomTones.com and you will see pages and pages of user-created tones.  Download them, then use Spider Edit to transfer them to the User Preset locations on your Spider IV amp.

fflbrgst's answer above is correct. I have marked the answer that is correct for your question, please help out the community by marking other suggestions that were helpful to you as "Helpful Answer".

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