How do you underline the entire cell?,

[4freebired]

Beneath a column of numbers, I would like to put a straight line across the entire cell. The last number is a single digit, so clicking the underline icon restricts the underline to that digit length.

[mikekaganski]

Use cell borders for that. Making it bold or double might do the trick.

[4freebired]

Thanks, that achieved what I was after.