I need to apply a bottom border to only filled cells. Archives didn't
yield anything pertinent that I could find but I was able to figure
which line style by recording the keystrokes. I need the hairline
style on the bottom edge, if this is any help:

Selection.Borders(xlDiagonalDown).LineStyle = xlNone
Selection.Borders(xlDiagonalUp).LineStyle = xlNone
Selection.Borders(xlEdgeLeft).LineStyle = xlNone
Selection.Borders(xlEdgeTop).LineStyle = xlNone
With Selection.Borders(xlEdgeBottom)
.LineStyle = xlContinuous
.Weight = xlHairline
.ColorIndex = xlAutomatic
End With
Selection.Borders(xlEdgeRight).LineStyle = xlNone

Thanks so much. :oD