With Filestar you can easily convert G3 to SVG. Accessible directly in your right click menu for single or batch G3 processing. How to convert G3 to SVG:
1. Download and install the latest version of Filestar. (https://filestar.com)
2. Right click on one or more G3 file(s) on your desktop and select Convert with Filestar.
Type "convert svg" in the search box.
3. Press Run.