ACTM is a CAD file used by 2D/3D design application tool AutoCAD developed by Autodesk. ACTM stores macros for AutoCAD.

ACTM files are generated by a built-in action recording tool AutoCAD's Action Recorder. The tool records sequences of action and commands performed by user. However, not all commands can be captured by the recorder as they cannot be a part of a macro. Macros allow users to automate repetitive task.