For clarity, it doesn't work on paragraphs! That means the cell can
only contain a single sentence.

I'm also wrong about this.., so long as end of sentence punctuation is
"." or "?"! Changing the sub as folows makes it suitable for multiple
sentences/paragraphs...

Sub SentenceCase()
Dim c As Range
Application.ScreenUpdating = False
For Each c In Selection.Cells
s = c.value
Start = True
For i = 1 To Len(s)
Ch = Mid(s, i, 1)
Select Case Ch
Case ".", "?", "!": Start = True
Case "a" To "z": If Start Then Ch = UCase(Ch): Start = False
Case "A" To "Z": If Start Then Start = False Else Ch =
LCase(Ch)
End Select
Mid(s, i, 1) = Ch
Next
c.value = s
Next
End Sub

--
Garry

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