i tried mineconvert it didnt work for me i dont want that one of my friends hard work to be just in his device i want to share it but i dont know how
The current stable version of PMMP doesn't support the latest world format version. If it's an older world, you can replace the extension mcworld with zip and unpack it to your worlds folder. If it's a newer world you can either find a way to convert it or wait until PMMP 4.0.0 is released. If you just want to open the world to other people and don't need plugins, you can use the official Bedrock dedicated server software.
so your saying the if the world is 1.14+ it cant be used but if its lower it can and i have to wait for pmmp to support it?
I don't know the exact version, but: - If it's lower you can use it right now - If it's newer you have to wait until PMMP 4.0 is out (you can also try the unstable build right now)