Export DGN FILE TO DWG!

When you do either a Save As or Export from DGN to DWG there is an Options Dialog Box. Inside that box is various settings for Version, Working Units, etc. Select DWG as Save As Type and the Options box will be available. Hope this helps!

Is there un way to transform a DGN with metaview (windows) and layout and have it in DWG and keep the same structure (X-Ref , layout etc.) ? Thanks to help me. 

Is there un way to transform a DGN with metaview (windows) and layout and have it in DWG and keep the same structure (X-Ref , layout etc.) ? Thanks to help me. 

Reference files (Xrefs) can be retained as attachments or merged (bound).

Sheet Models (layouts) will be included automatically in the translated file.

MicroStation view windows will not be carried over because AutoCAD doesn't have view windows.

AutoCAD does not allow any drawing to have more than one design model (model space). If your drawing has more than one design model, the Options for export give you several choices for what to do with the extras. None of those may be what you really want, but that's a limitation of AutoCAD.