Wordbee now support .indd files generated with InDesign CS6 or later. These will actually be converted into .idml to allow the import into your projects.
Upon right click in the document section, the conversion option is now available:
To use this feature your administrator will need to enable it in the settings under 'Web Preview and INDD Converter' and sign-up for a subscription with our partner Frontlab.
For more information, please do not hesitate to contact your Account Manager.