DWG to IGES (IGS) Converter

There are many converters online, this is one of them.:

https://convert.emachineshop.com/

Here's the screen shot...

Supposedly, there are no problems or incompatibilities between MAC and WINDOWS when handling DWG files, but I don't know if the files are really identical. As an example, I leave you a simple dwg so you can see if you can open it (I attach an image of its content)

Here's a screen shot of the file!