: Open the file in a virtual machine or a secondary computer if you are unsure of its origin. How to Use the Lobby File
: Before opening, upload the file to VirusTotal to check for malicious code. HyCraft Lobby.rar
If the file is confirmed safe, it is likely intended for one of the following uses: : Extract the folder within the .rar . : Open the file in a virtual machine
: Install Optifine or Sodium to handle high-detail builds without lag. HyCraft Lobby.rar
Place the extracted .litematic file into your .minecraft/schematics folder.