Sub AddUpCells()
Dim intTotal As Integer
Dim currCellRow As Integer
Dim currCellCol As integer
Dim ws As Worksheet
currCellRow = ActiveCell.Row
currCellCol = ActiveCell.Column
intTotal = 0
For each ws in ActiveWorkbook
If ws.Name <> "Sheet1" Then
intTotal = intTotal + Cells(currCellRow, currCellCol).Value
End If
Next ws
ActiveCell.Value = intTotal
End Sub