Files with the .mxp extension are most commonly associated with Adobe Creative Suite. The MXP files contain add-ons that are used to add features and functions to the software. They commonly contain new menus and toolbars that enhance the software features. These files can be managed using the program's extension manager.
The .mxp file extension is also used for ArcReader published map files and 3-matic project files.
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the MXP file format or software that uses files with the MXP suffix, please do get in touch - we would love hearing from you.