Help converting Revit 2015 Files into DWG Format

Hi guys,

I have a file which is in Revit 2015 format. However, I would like to convert/export the plans, sections etc from Revit into:

a) CAD format which can be opened with AutoCAD and

b) format openable with ArchiCAD (if possible).

Anyone who is willing to help me out? I will share the Dropbox link once the RVT file is fully uploaded.

Thank you.