The CharSpacing property returns or specifies the spacing between the characters in a text range.
Examples:
The following VBA example sets the character spacing to 1.3.
Sub Test()
Dim d As Document
Dim s As Shape
Dim t As Text
Set d = CreateDocument
Set s = d.ActiveLayer.CreateParagraphText(2, 2, 4, 4, "This is an example.")
Set t = s.Text
t.Story.CharSpacing = 1.3
End Sub