{description} {excerpt}Defines a set of constants related to worksheets.{excerpt} {signature:C#} public class Constants {signature}{signature:vb.net} Public Class Constants {signature} {values} ||Name||Description|| |{anchor:MAX_COLUMNS}MAX\_COLUMNS|A constant holding the maximum index of a column on a worksheet, 255.| |{anchor:MAX_ROWS}MAX\_ROWS|A constant holding the maximum index of a row on a worksheet, 65535.| |