Change ExcelRange.ExcelRangeEnum.Dispose() to call GC.SuppressFinalize(Object). This will prevent derived types that introduce a finalizer from needing to re-implement 'IDisposable' to call it. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1816)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)

Use 'string.EndsWith(char)' instead of 'string.EndsWith(string)' when you have a string with a single char (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1865)

Use 'string.StartsWith(char)' instead of 'string.StartsWith(string)' when you have a string with a single char (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1865)

Use 'string.Contains' instead of 'string.IndexOf' to improve readability (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2249)

ExcelCell should define operator(s) '<=, >=' since it implements IComparable (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1036)

Names of 'Members' and 'Public Property Address As String, Public ReadOnly Property Address(inclusiveSheetName As Boolean) As String, Public ReadOnly Property Address(inclusiveSheetName As Boolean, useAbsoluteAddressingForColumn As Boolean, useAbsoluteAddressingForRow As Boolean) As String, Public Shared ReadOnly Property Address(rowIndex As Integer, columnIndex As Integer) As String' should differ by more than case (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1708)

Names of 'Members' and 'Public Property Cell(rowIndex As Integer, columnIndex As Integer) As String, Public Property Cell(rowIndex As Integer, columnName As String) As String' should differ by more than case (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1708)

ExcelRange should define operator(s) '<=, >=' since it implements IComparable (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1036)