'utf-8' codec can't decode byte 0xff in position 0: invalid start byte error pandas code example

Example 1: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

with open(file, newline='', encoding="utf16") as MyFile:

Example 2: UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb0 in position 1968: invalid start byte

pd.read_csv("C:/Users/Admin/Desktop/Python/Past.csv",encoding='cp1252')