Te anexo la macro
Sub PonerBordes()
'Por.Dante Amor
With ActiveSheet.UsedRange
.Borders(xlEdgeLeft).LineStyle = xlContinuous
.Borders(xlEdgeLeft).ColorIndex = 0
.Borders(xlEdgeLeft).TintAndShade = 0
.Borders(xlEdgeLeft).Weight = xlThin
'
.Borders(xlEdgeTop).LineStyle = xlContinuous
.Borders(xlEdgeTop).ColorIndex = 0
.Borders(xlEdgeTop).TintAndShade = 0
.Borders(xlEdgeTop).Weight = xlThin
'
.Borders(xlEdgeBottom).LineStyle = xlContinuous
.Borders(xlEdgeBottom).ColorIndex = 0
.Borders(xlEdgeBottom).TintAndShade = 0
.Borders(xlEdgeBottom).Weight = xlThin
'
.Borders(xlEdgeRight).LineStyle = xlContinuous
.Borders(xlEdgeRight).ColorIndex = 0
.Borders(xlEdgeRight).TintAndShade = 0
.Borders(xlEdgeRight).Weight = xlThin
'
.Borders(xlInsideVertical).LineStyle = xlContinuous
.Borders(xlInsideVertical).ColorIndex = 0
.Borders(xlInsideVertical).TintAndShade = 0
.Borders(xlInsideVertical).Weight = xlThin
'
.Borders(xlInsideHorizontal).LineStyle = xlContinuous
.Borders(xlInsideHorizontal).ColorIndex = 0
.Borders(xlInsideHorizontal).TintAndShade = 0
.Borders(xlInsideHorizontal).Weight = xlThin
End With
End Sub
Saludos.Dante Amor
Recuerda valorar la respuesta.