[Answered ]-Open text file stored as record in Django db

You need to call all and then use the file’s path, as exemplified in the documentation. Or for this simple test you could use first:

file = ScheduleFile.objects.first().csvSchedule

with open(file.path, 'rt', encoding='windows 1250') as csv_input:
    reader = csv.reader(csv_input, delimiter=';')
    print(reader)