.CBMAP File Extension
What is a CBMAP file?
File created by SCP-CB Map Creator, which is a tool held within SCP Containment Breach, a free horror survival game; contains map data referenced during gameplay; different types of map data include tunnels, elevators, rooms, checkpoints, and closets.
To create your own map, open the SCP-CB Map Creator, customize your map, name your map in the lower-right field with the blinking text cursor, and click Save as. All of your CBMAP file will be saved in the "Maps" folder, which is located in the "Map Creator" folder with the Map Creator tool.