Returns a Workbook object that represents the workbook where the current macro code is running.
Namespace: Microsoft.Office.Interop.Excel Assembly: Microsoft.Office.Interop.Excel (in microsoft.office.interop.excel.dll)
Use this property to refer to the workbook that contains your macro code. ThisWorkbook is the only way to refer to an add-in workbook from inside the add-in itself. The ActiveWorkbook property doesn't return the add-in workbook; it returns the workbook that's calling the add-in. The Workbooks property may fail, because the workbook name probably changed when you created the add-in. ThisWorkbook always returns the workbook in which the code is running.
This property can be used only from inside Microsoft Excel. You cannot use it to access a workbook from any other application.