To play on existing multiplayer worlds, you do not "download" a server file; instead, you connect to an IP address within the game.
If you want to create a private world for friends, you must download the server software and run it on your PC. How To Join a Minecraft Server on PC (Java Edition) mainkraft onlain server skachat
: Go to Multiplayer > Add Server , paste the IP, and click Join Server . To play on existing multiplayer worlds, you do