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Gets or sets the size of the font in points.
The returned value specifies the font size applied to the represented text.
double Size { get; set; }
Property Size As Double
IShape shape = worksheet.Shapes.AddShape(AutoShapeType.Rectangle, 40, 40, 100, 100);
shape.TextFrame.TextRange.Text = "Hello";
shape.TextFrame.TextRange.Font.Size = 18;
double fontSize = shape.TextFrame.TextRange.Font.Size;