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Specifies the type of grid lines.
public enum GridLineType
  Public Enum GridLineType
  | Name | Description | 
|---|---|
| Flat | Displays grid lines on the sheet as flat, no contour  | 
      
| Lowered | Displays grid lines on the sheet to appear as lowered contour  | 
      
| None | Displays no grid lines on the sheet  | 
      
| Raised | Displays grid lines on the sheet to appear as raised contour  |