1- Open the file with 7zip, Winrar or any other program that allows you to unzip these types of files
2- Unzip the file into your MAP FOLDER who start on your server.cfg
3 – For FiveM servers – Drop the YMAP file to the Stream folder that should be located in your Map folder, and that folder shall need to be up on your server Resources folder. After you have that ready, you will need to start the script on your Server.cfg (The name of the script will be the name you have put the maps on… For example : start Map2)
1 Extract the YMAP from the folder and set it on your desktop
2 Open OpenIV, install it if you dont have it already
3 [Make sure you go into edit mode!!]
4 Click update> x64> dlcpacks> custom maps>dlc.rpf> x64> levels> gta5> citye> maps> custom maps.rpf
5 Then take the YMAP and drag & drop it into OpenIV then its in.