Based on the thread you are citing, I guess you wish to return the concatination of all the values held by the cells, interpreting all the values as strings?
For that, you could use a VBA macro that looks like this:
Function ConcatinateAllCellValuesInRange(sourceRange As Excel.Range) As String
Dim finalValue As String
Dim cell As Excel.Range
For Each cell In sourceRange.Cells
finalValue = finalValue + CStr(cell.Value)
Next cell
ConcatinateAllCellValuesInRange = finalValue
End Function
As an example, you could call it like this:
Sub MyMacro()
MsgBox ConcatinateAllCellValuesInRange([A1:C3])
End Sub
Is this what you were looking for?
Mike