How To Export Your Singleplayer World?
Open Minecraft and press the “Play” button.
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Click the pencil button next to the world that you’re looking to export.
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Scroll down until you see the “Export world” button. Click it and save it to your computer.
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How To Upload Your World?
Head over to the Game Panel and close your server.
Navigate to the “Files → /worlds” tab and folder and create a new folder inside of it (this will be the name of your world).
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Go into the newly generated folder and upload your exported world in there. Right-click it afterwards and unarchive it.
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Delete the .mcworld file from the folder and activate the new world through the “Worlds” tab in the game panel.
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Start your server.
Congratulations, you've successfully uploaded your own world to the server. If you have any issues or concerns, please contact us through the ticket system.