Import of 3DXML into CATIA V6 (Enovia)

Hi all

I generated 3DXML from CATIA V5 and then imported them to CATIA V6 (Enovia).

I have an error message on CV6 that tells me that importing this type of extension is not supported. However, I do well:

PLM Access / Import / 3Dxml

If you have any leads...

Thanks in advance