[]
Gets or sets the indent level for the style.
Use this property to define or retrieve the indentation applied to cell content when the style is assigned.
int IndentLevel { get; set; }
Property IndentLevel As Integer
IStyle style = workbook.Styles.Add("indentStyle");
style.IndentLevel = 2;
worksheet.Range["A1"].Style = style;
int indentLevel = style.IndentLevel;