Trilogy Save Editor is an open-source software application for editing Mass Effect 3 save files. It can import and export your save files to edit them. It can edit almost every part of the save file. There are several categories and thousands of items in this app. It is very easy to use and has a nice and clean user interface. It is a fully compatible app for both the original Mass Effect 3 and the Legendary edition. It supports both the Xbox 360 and PS4 platforms. It is free to download and use. It is open-source with a CeCILL license.