Autodesk Maya plug-in
File type: Plugin, addon file
An .mll file is a plug-in for Autodesk Maya, Autodesk's 3D modeling and animation software.
Maya loads the plug-in to add features, commands, tools, or other functionality that is not included in the core application.
File type category:
Plugin, addon file
Date updated: October 25, 2026
The .mll file extension identifies a compiled native plug-in associated with Autodesk Maya. The file contains program code that Maya can load to extend its features, such as with custom commands, nodes, tools, or import and export functions.
Autodesk Maya is available for Windows, macOS, and Linux. The .mll format is generally used for Maya plug-ins built for Windows; plug-ins for other platforms use platform-specific formats. A plug-in must be built for the relevant Maya version and operating system to load correctly.
The file is normally distributed as part of a plug-in package rather than edited directly by users.
Open or load an .mll file from Autodesk Maya's Plug-in Manager. In Maya, use the Plug-in Manager to browse to the file and load it, or enable it to load automatically when Maya starts.
The plug-in must be compatible with the installed Maya release and Windows system. An .mll file built for another operating system cannot normally be loaded; Maya plug-ins for macOS or Linux may use different platform-specific file formats.
An .mll file is compiled plug-in code and cannot be meaningfully converted to another general-purpose file format. To use it on another platform or with an incompatible Maya release, obtain a compatible build from the plug-in developer or rebuild it from the plug-in's source code.
Software apps that import mll files:
Multiplatform
English
