Click the "Select File" button above, and choose your MB file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MB to another file type
To convert MB scenes to another format, you need Autodesk Maya or other 3D software.
Convert a file to MB
To convert other file formats to the "Binary 3D Scene File" file type, you need software like Autodesk Maya or a similar tool.
About MB files
The .MB file extension primarily represents a Maya Binary Scene File created by Autodesk Maya. This format stores complete 3D scenes, including geometry, animation rigs, lighting, shading networks, and rendering settings. Other rare uses include 4D construction cost databases by ACCA Software or legacy Kodak EasyShare data files. The biggest disadvantage of the .MB format is its proprietary, compiled nature. Unlike the human-readable MA (Maya ASCII) format, a .MB file cannot be opened in a text editor to fix corrupted data, change file paths, or bypass version restrictions. You generally need an expensive subscription to Autodesk Maya to natively open and manipulate these files. If you need to use the 3D data in Blender, Unity, or Unreal Engine, the best target conversion formats are FBX for rigged models and animation, or OBJ for static meshes. Be aware that converting usually results in the loss of Maya-specific shader networks and procedural modifiers. Standard online converters frequently fail to process .MB files because the format relies heavily on Maya's internal procedural engine rather than storing explicit, raw polygons. Because this is a closed, proprietary format, third-party software struggles to decode it accurately without the original engine.
Convert.Guru analyzes your MB file, detects the exact format, and lets you read the text inside.
If you want to convert MB file to KB, GB, TB, BYTES, JPG, OBJ, FBX, DAE, 3DS, MAX, BLEND or MA, you can use Autodesk Maya or similar software from the "3D Scene Project Storage" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to MB, try Autodesk Maya or another comparable tool in the "3D Scene Project Storage" category.
The MB Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MB converter.