It is still the same. In case you need a macro so that file open dialog box shows all files, use following codes:
Dim swApp As SldWorks.SldWorks
Dim swModel As SldWorks.ModelDoc2
Dim Filter As String
Dim fileName As String
Dim fileConfig As String
Dim fileDispName As String
Dim fileOptions As Long
Set swApp = Application.SldWorks
Filter = "All Files (*.*)|*.*|SolidWorks Files (*.sldprt; *.sldasm; *.slddrw)|*.sldprt;*.sldasm;*.slddrw|"
fileName = swApp.GetOpenFileName("File to Attach", "", Filter, fileOptions, fileConfig, fileDispName)
so we need to run this macro everytime we want to open a file? This is dissapointing and too many clicks
You'd probably create a button for this so it would be as handy as the save button. A shortcut key could also be assigned.