Conversion of 3dxml files to dae file format

In the past there seems to have existed a way of converting 3DXML models to COLLADA DAE format using the 3DVIA.com portal provided by Dassault Systemes, where uploaded models could be downloaded in several different formats. Unfortunately downloading in DAE format is only available for a fee (paid account). Since 3DXML is a proprietary format with somewhat expensive yearly license, not many programs support it.

Open 3DXML file    Open DAE file