.DAT_MCR File Extension
Minecraft Level.dat Backup File
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What is a DAT_MCR file?
File created by Minecraft, an open-ended 3D construction game; saves a backup of the level.dat file when the newer version of the game updates from the older "Region" (.MCR) format to the newer "Anvil" (.MCA) format.
The level.dat_mcr file can be restored to the level.dat file if you want to revert to the older world format.
NOTE: Minecraft Snapshot 12w07b was the first version to update to the Anvil world format.
Common DAT_MCR Filenames
level.dat_mcr - A backup of the level.dat file created when newer versions of Minecraft update to the "Anvil" format. It is created so the user can revert to the older MCR format if desired.
Programs that open or reference DAT_MCR files