svg to vsx conversion represents using of vector graphics in SVG format in Microsoft Visio, which is certainly doable as this format is one of the supported formats. It is unlikely the same can be done with other software, so in this case Visio is the right software.
There are actually quite a few tutorials and even YouTube videos about how to work with Visio on the Internet, so perhaps these can help you out with your export or any issues you can have.
Updated: November 6, 2023