Thanks for any help.
If this is a PSD or PSB file, in CC Preferences > File handling, make sure 'Maximise PSD and PSB file compatability' is not set to Never before saving the document from CC.
Thank you, but I don't have access to CC anymore, so I can't open and save it again.
Also I have the same problem with Indesign files.
Are you using trial version, for indesign CC save file as IDML then open it on indesign CS6
PSD's saved from CC should open fine in CS6.
Are you getting an error of some kind?
Thank you for your help. My problem was, that I did not have access to CC any more.
The solution was to find a computer where I could install a CC trial and then do what you recommended and that worked out fine.