Storing WPT runs for longer than 13 months

I seek to run tests from the public WPT instances and store the results for longer than 13 months. Specifically, I need to be able to refer back to the performance numbers, waterfall and the film-strip in the future.

I can see that there’s a way to export the results. But, where do I import these exported files to see the results again?

I thought this was for the purpose, but doesn’t seem to be working that way.

Please let know.