Pandas read txt. 'utf-8' codec can't decode bytes in position 0-1: invalid continuation byte. syntaxerror: (unicode error) 'utf-8' codec can't decode byte 0xc3 in position 0: invalid continuation byte. utf-8 codec can't decode byte csv.reader. dictreader unicodedecodeerror: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte.