Editor – A new PES17 editor with the familiar UI of PES Next-Gen Editor.
4cc 2017 Save Editor – An editor for PES17 EDIT files with a UI layout similar to that of RigIt.
pesXdecrypter – Edit file decrypter used by the tools above, needed if you want to hex edit the editfile manually since it is encrypted.
Using a hex editor – See Pro Evolution Soccer 2017/Edit file for details.
Transfer – Easily transfer exports and aesthetics between slots
The Edit file (often simply referred to as save) stores all player stats, appearance settings, teams, tactics, and so on. It is created once you start the game and open the Edit menu.
In PES17 EDIT00000000 can be found in %HOMEPATH%\documents\KONAMI\Pro Evolution Soccer 2017\save.