There are 3 file types use the .MPJ file extension:
1. Minitab Project File
Project file used by Minitab, a statistical analysis program used for business processes and quality management; contains all user work, including the data (.MTW files), session history, graphs, and reports; used to compile multiple analysis resources together into single a project.
Updated: October 26, 2009
2. messiahStudio Project File
Project file created by messiahStudio, a 3D animation and rendering application; saves all project data in a single binary file; includes the scene (.FXS), cameras, objects, motions, and other model information; useful for sharing the whole project as a single archive.
Updated: June 19, 2015
3. RoboHelp HTML Project
Project file created by older versions of RoboHelp, a help content authoring application; contains help content such as table of contents, written help information, and searchable indexes; commonly used in the process of generating software help manuals.
Newer versions of RoboHelp use the .XPJ extension. MPJ project files can still be opened in recent versions of RoboHelp.
Updated: June 17, 2011