The code is correct but the problem is with the file's encoding.Try converting the file to utf-8 online or use python chardet to automatically detect the right encoding for your json file

import chardet
rawdata = open("test11.json", 'rb').read()
result = chardet.detect(rawdata)
charenc = result['encoding']

with open("test11.json","r", encoding=charenc) as file:
    data = json.load(file)
    print(data)

See about encoding from this other solution on StackOverflow here