changes the value of the Name property of the first worksheet in the first workbook of the Excel application:

 
Sub changeValue()
    Application.Workbooks(1).Worksheets(1).name = "My Sheet"
End Sub

1.	Select Entire Sheet
2.	Get Worksheets count in a Workbook
3.	Get Worksheet name
4.	Gives indexes of sheets
5.	Inserts a new sheet after each sheet
6.	Loop through all worksheets in workbook and reset values in a specific range on each sheet.
7.	Group sheets together
8.	Reference worksheet across worksheet
9.	Determines if a given worksheet name exists in a workbook
10.	Activate last sheet
11.	Activate first sheet
12.	Reference a worksheet from a workbook
13.	Safely Deleting Worksheets Using the DeleteSheet Function
14.	Using a Function to Check for the Existence of a Code Name
15.	Using the Parent Property to Obtain a Reference to an Object's Parent Object

changes the value of the Name property of the first worksheet in the first workbook of the Excel application: : Worksheet « Excel « VBA / Excel / Access / Word