I have a subroutine in my errorhandling function that attempts to close every workbook open in every instance of Excel. Otherwise, it might stay in memory and break my next
Set ObjXL = GetObject(, "Excel.Application")
do until ObjXL Is Nothing
Debug.Print "Closing XL"
ObjXL.Application.DisplayAlerts = False
ObjXL.Workbooks.Close
ObjXL.Quit
Set ObjXL = Nothing
Set ObjXL = GetObject(, "Excel.Application") ' important!
loop