Format | Borders and Shading. Select a double-line border and apply it to
the bottom of the cell. If you use the Tables and Borders toolbar, it is
even easier to do this. Also, once you've selected a double line, it becomes
your default border and can be applied using the buttons on the Borders
flyout on the Formatting toolbar.

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"liasmith" wrote in message
...
I need the format option to double underline the entire width of table
cells
in Microsoft Word.