Check the application has Storage permissions (Settings -> Apps -> Save Game Editor for Baldur's Gate -> Permissions -> Storage ON)

1. Run Baldur's Gate
2. Remember (or write down) your character's stats
3. Save game
4. Run this application and click on the save game file
5. Fill your character's stats on left and new stats on right
6. Press Search and Save button

Check the application has permissions Storage (Settings -> Apps -> Save Game Editor for Baldur's Gate -> Permissions -> Storage ON)

Run the first Baldur's Gate
2nd Remember (or write down) your character's stats
Save 3rd game
4th Run this application and click on the save game file
5th Fill your character's stats on left and new stats on right
6th Press Search and Save button