Open RBXM File
An RBXM extension file contains information that describes a 3D modeled playing field, parts, tools, scripts and equipment in ROBLOX, an online multiplayer construction game.
The RBXM file is similar to the RBLX file, from ROBLOX as well, which stores the 'coordinates' or location that defines a place, while the RBXM files define the tools, scripts, parts and equipment, inside ROBLOX.
ROBLOX Studio
ROBLOX has its own scenario editor, called ROBLOX Studio, in ROBLOX Studio you can choose from a variety of models, meshes, decals and audio to be applied to the elements of the game, such as vehicles, weapons, buildings and NPCs that are they can play in the ROBLOX game. All this information is stored in the RBXM file.
To create an RBXM file you must have the software installed: