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Gets or sets whether the specified table style is shown as available in the slicer styles gallery.
bool ShowAsAvailableSlicerStyle { get; set; }
Property ShowAsAvailableSlicerStyle As Boolean
ITableStyle customStyle = workbook.TableStyles.Add("SlicerStyle");
customStyle.ShowAsAvailableSlicerStyle = true;
bool available = customStyle.ShowAsAvailableSlicerStyle;