To edit an Easy Save 3 (ES3) save file, you must first locate the file on your device and determine if it is encrypted or compressed. Most .es3 files are stored in a human-readable JSON-like format unless the developer has enabled encryption or GZip compression. 1. Locate the Save File
Warning: Editing save files can corrupt your game if done improperly. Always back up your saves (located in Documents\My Games\Morrowind\Saves). how to edit es3 save file
Use Specialized Tools: For certain games, community members have built specific tools, such as the R.E.P.O. Save Editor or general Easy Save decryptors. To edit an Easy Save 3 (ES3) save
// Needs ES3 plugin referenced
var data = ES3.Load<object>("saveKey", "path/to/savefile.es3"); // or ES3.LoadRaw
string json = JsonConvert.SerializeObject(data, Formatting.Indented);
File.WriteAllText("dump.json", json);
// Modify json, then deserialize and save:
var modified = JsonConvert.DeserializeObject<object>(File.ReadAllText("dump_modified.json"));
ES3.Save("saveKey", modified, "path/to/savefile.es3");