You have other answers showing the use of the PROPER Function to act upon one
cell at a time.

If you want to change many cells at once you will need a macro.

Sub Proper_Case()
'David McRitchie, programming, 2003-03-07
Dim rng1 As Range, rng2 As Range, bigrange As Range
Dim Cell As Range
Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
On Error Resume Next
Set rng1 = Intersect(Selection, _
Selection.SpecialCells(xlCellTypeConstants))
Set rng2 = Intersect(Selection, _
Selection.SpecialCells(xlCellTypeFormulas))
On Error GoTo 0
If rng1 Is Nothing Then
Set bigrange = rng2
ElseIf rng2 Is Nothing Then
Set bigrange = rng1
Else
Set bigrange = Union(rng1, rng2)
End If
If bigrange Is Nothing Then
MsgBox "All cells in range are EMPTY"
GoTo done
End If
For Each Cell In bigrange
Cell.Formula = Application.Proper(Cell.Formula)
Next Cell
done:
Application.Calculation = xlCalculationAutomatic
Application.ScreenUpdating = True
End Sub


Gord Dibben Excel MVP

On Thu, 6 Jan 2005 07:09:04 -0800, "LM" wrote:

I need to change several columns of data from all upper case to Title Case.
What formula should I use & How can I apply the formula to the data in each
cell?