I have tested at 23andMe, FamilyTree DNA (FTDNA), AncestryDNA, and Geno 2.0 as well as transferring my results to WeGene, DNA.Land, LivingDNA, and MyHeritageDNA. I haven’t tried this yet, but it sounds interesting – How to Create a DNA Superkit for DNA Test Results – A Segment of DNA: https://www.youtube.com/watch?v=IJmAHNSODuw (about 21:42 minutes long).
It’s probably a lot more complicated than I want it to be. I sent a request to an IT friend of mine to see if he has an easier way. My friend found an easier way to do this. Once I get the chance to try it out, then I will post the way he found. From what I read, it is supposed to be much easier.