How to: Programmatically Move Worksheets Within Workbooks
You can programmatically change the position of worksheets relative to other worksheets in a workbook. If you do not specify a location for the moved sheet, Excel creates a new workbook to contain it.
Applies to: The information in this topic applies to document-level projects and VSTO add-in projects for Excel. For more information, see Features Available by Office Application and Project Type.
To move a worksheet in a document-level customization
Assign the total number of sheets in the workbook to a variable and then move the first worksheet so that it becomes the last one.
To move a worksheet in an VSTO Add-in
Assign the total number of sheets in the workbook to a variable and then move the first worksheet so that it becomes the last one.
Working with Worksheets
How to: Programmatically Hide Worksheets
How to: Programmatically Delete Worksheets from Workbooks
How to: Programmatically Protect Worksheets
Global Access to Objects in Office Projects