Good Day. I have a question: one of my Clients has migrated to InDesign Creative Cloud. I'm running InDesign CS5.5. If I upgrade to CS6, will files be easily shared back and forth between CC and CS6, without having to resort to IDML files when going from CC to CS6? Please advise ... thanks!
No. But A CC subscription includes CS6 so your client could use that.
BUTIf I were paying you I'd expect you to have the proper software to
You have to save the file to IDML in order to open it in CS6. If you had broken link that was save in CC, once you save the file to IDML, you would not be able to see the preview.