[]
        
Specifies the reference style in formulas and custom names in the sheet.
public enum ReferenceStyle
  Public Enum ReferenceStyle
  | Name | Description | 
|---|---|
| A1 | Uses letters and numbers for column and row coordinates; uses dollar sign ($) for absolute coordinates  | 
      
| R1C1 | Uses "R" and number for row, "C" and number for column coordinates; uses brackets [ ] for relative coordinates  |