Open an Excel file from aform in VBA

Hello,

I am having trobules trying to open an excel file from a form using VBA I can open a file using the next code:

Workbooks.Open Filename:="Z:\06 Elaboración\Prueba 3.0\Agua.xls"
ThisWorkbook.Close
Sheets("Agua").Select
Load Agua
Agua.Show



The problem is that the file that I need to open also have forms but it does not open automatically

I will apreciate your help a lot