Installation of spun Theme

Hello,

I hope this is a silly question that has a very simple solution…

I recently changed my hosting provider and am now having to recreate my whole site, which is a bit of a pain. I want to use Spun theme again but it unavailable when I search for it.

I have a copy saved but can’t see where it might be possible to upload it.
(I understand it is rather old but it was working fine before)

THANKS!