public class WorksheetCollection : IWorksheetCollection, 
	IList, ICollection, IEnumerable

Public Class WorksheetCollection
	Implements IWorksheetCollection, IList, ICollection, IEnumerable

public ref class WorksheetCollection : IWorksheetCollection, 
	IList, ICollection, IEnumerable

type WorksheetCollection =  
    class
        interface IWorksheetCollection
        interface IList
        interface ICollection
        interface IEnumerable
    end