How can I handle the extra values when unpacking a sequence with an unexpected number of elements?

You can handle extra values in several ways. 1) Use `*` to collect the extra values into a list: `for class_id, value, *rest in data:`. 2) Ignore the extra values using slicing: `class_id, value = data[0:2]`. 3) Use a conditional statement to check the length of the sequence before unpacking. 4) Adjust the logic of your data processing to handle different data formats gracefully, possibly by splitting the data into multiple steps.