Hi First time converting a SKP file to DWG in Layout. I guess it is a good sign that once the SKP file has been converted I can not longer open it without a DWG program. I guess there is no way to check the file without a DWG program. Hope that makes sense.
The free DWG TrueView application from Autodesk is a good tool for inspecting DWG and DXF files. It is a viewer only but it can convert between different versions of the format.