I have one 8TB for a place to have everything. But there are copies of it on smaller drives. Most of them XP can read.
Why not? Actually I have two XP machines running at the moment and both are online. One is doing a stream while the other one is here. Something goes wrong and a drive fails, RAM craps out, or whatever, I'm still good to go. Why do corporations say they can't access their system now since they are down? Why live like that? That has to cost them lots of lost revenue. Why not have another machine up and running that can take over in a moments notice? I don't get it.
Why XP? Newer Windows are bloated and are huge CPU hogs. That is because they are doing a million things in the background and probably reporting everything you do to Microsoft, NSA, China, and who knows who else.

And that is why I ordered a game machine with an 8th Gen Intel® Core™ i7-8750H processor just to run Windows 10 at a decent pace.