You can create a backup of your Minecraft: Bedrock Edition world to store locally or transfer onto another Windows PC by exporting your world file:
- Launch Minecraft and select Play.
- Select the pencil icon on the world you want to copy on the Worlds tab.
- Select Export world from the General Settings under File management.
- Modify any settings you’d like to enable and select Export world.
- Choose a location to save the file and select Export.