Bat-Export as DXFs tool can help export some views/sheets of project files in batch out as DXF files.

After the ribbon button is clicked, a dialog will pop up asking for files/folders.

Then a dialog will pop up asking for an export setup.

Then another dialog will pop up asking for what kinds of views/sheets to concern.

Views/Sheets Kinds:

• All Sheets (Excluding Place Holders or Templates)
• All Views (Excluding Templates, Sheet, Schedues, Reports, ...)
• All Plan Views (Floor/Area/Structural Plan Views)
• All 3D Views (Excluding Templates)
• All Legends (Excluding Templates)
• Entire Model
• View/Sheet Set

Then the output folder will be asked for. 

After OK is clicked, the tool will perform accordingly.  Those views/sheets as concerned will be exported as DXF files into the folder.  Each project file will have a sub-folder created into the output folder.

A progress bar will show what is going on at each moment and what remaining time may be.

The output folder will be opened in a Windows Explorer.  The tool will finally report what have been done.