After my various sites got hacked…

After my various sites got hacked last year, my brother helped me combine the WP export files into one (json, right?) -- we think it's pretty much all there. Is there an easy way to set this up somewhere, somehow as an searchable #archive separate from the single site I've set up since the hack, without installing a new and separate instance (I'm using #ClassicPress now).

I'm not a technical person, so it would have to be a fairly simple solution. Any ideas are welcome.