.MXP File Extension
File TypeAdobe Extension Package
What is an MXP file?
Add-on used by Adobe Creative Suite applications such as Flash, Dreamweaver, Photoshop, and Premiere Pro; adds additional functionality to the software, such as new menus or toolbars.
Extensions can be managed using Extension Manager, a program that allows users to enable and disable extensions for Adobe programs. Extension Manager is commonly bundled with Adobe software purchases.