Talk: Java Edition Classic 0.24 SURVIVAL TEST 03

How do i play this version? I downloaded the .jar and .json files, but idk how to open them up to play the game.

--109.98.42.178 22:50, 5 June 2020 (UTC) you use the .minecraft versions folde187.19.254.41 19:39, 21 October 2020 (UTC)