Save in HyperChem file format (*.hin) skipping extra-bonds (they will be lost).
Save in HyperChem file format (*.hin) and include extra-bonds. Such files could be reopened later in OpenEvolver, but they are not compatible with HyperChem as it doesn't recognize bonds of x-type (extra-bonds).
Save in HyperChem file format (*.hin) with empty graph (separate atoms).