UnicodeDecodeError: 'ascii' codec can't decode byte 0x\* in position \*: ordinal not in range(128)

Ubuntu: UnicodeDecodeError: 'ascii' codec can't decode byte 0x* in position *: ordinal not in range(128)

[virajbhagat]

How to decrypt a .csv file? Need help regarding decrypting.

[quillan]

this is the error i get:
UnicodeEncodeError: 'ascii' codec can't encode characters in position 7-20: ordinal not in range(128)