This tutorial video shows how to convert AutoCAD files to other AutoCAD versions / formats (DWG/DXF/DWF) on dwgConvert.
This video example is to convert a DWG file (AutoCAD 2018) to a DXF files (AutoCAD 2013). Of course you can convert to all other AutoCAD versions / formats.
Step1: Select an input file
Step2: Select Output file format / version and type an Output file name
Step3: Press Convert button