In case of exporting a multi feature layer TopoLynx topoXplore is able to save each feature types separately.
For example: you have a "multifeature.DXF" layer with points, lines and polygon features in the file. In this case you will get three different layers in accordance with the feature type:
Selected multifeature layer to export
The Save as File panel
Message box to the separated export: select "Yes" if you want to save the features into separated files