The 3rd party sites I've used don't ask for any identifying information though (unless you want to pay for paid features), it wouldn't surprise me if there were

The 3rd party sites I've used don't ask for any identifying information though (unless you want to pay for paid features), it wouldn't surprise me if there were simply downloaded freeware that you could use to do it offline on a virtual machine if you even wanted. A quick Google query leads me to this >I recently wrote a small tool, Snappy, that can help you browse and interpret your raw data. Written in JavaScript, all processing is done on your browser, without transmitting sensitive data to any server. That also enables the tool to be used offline https://www.reddit.com/r/23andme/comments/6troyj/wrote_a_new_tool_that_helps_you_browse_your_data/ https://www.reddit.com/r/23andme/comments/6troyj/wrote_a_new... So it does appear there are some sort of offline solutions for further exploring your raw data.