If you have a large Minecraft world, there may come a point you wish to trim your world. Trimming your world will allow new chunks to be generated in the affected area, this helps trim world size if it's too big, also, this is a great way to remove corrupted chunks.
Regardless of the reason why you want to trim your world, the MCA Selector tool is a great way to accomplish world trimming.
# Installing the MCA Selector Tool
- Navigate to the MCA Selector GitHub page
- Click the Download Version X.X (Windows Installer) link
- Once the installer finishes downloading, Right-Click it and click Run as Administrator
- Click Run Anyway, then follow the setup steps from the installation wizard
# Trimming a World Using the MCA Selector
Before you load your world into the tool and start trimming, we highly recommend you generate a backup of your world first!
- Navigate to the File tab and click Open World, then locate and select your desired world folder
- Hold left click to drag and select the chunks you would like to keep in your world
- Navigate to the Selection tab, then click invert
- Go back to the Selection tab, then click Delete Selected Chunks
This will delete all the chunks highlighted in orange. After it processes, you have successfully trimmed your world.
Next time you load into this world, it will start regenerating the affected chunks using the MCA world generator version of the world.
