Workbook.Activate Method (Excel)
Activates the first window associated with the workbook.
expression A variable that represents a Workbook object.
This method won't run any Auto_Activate or Auto_Deactivate macros that might be attached to the workbook (use the RunAutoMacros method to run those macros).
This example activates Book4.xls. If Book4.xls has multiple windows, the example activates the first window, Book4.xls:1.