I have been working on projects in the new CC 2018 version of InDesign, saved it out as an IDML as to be able to open the work on another computer that has InDesign CS 6. However, when I try to open up the file in CS 6 I get a message saying: Cannot open file " File name.idml". Adobe InDesign may not support the file format, a plug-in that supports the file format may be missing, or the file may be open in another application. I have made sure all plugins are up to date on both of the versions as well as that no other applications are open when trying to open the file up in the CS 6 InDesign. There has been no success. Please help, I have screenshots if necessary if that will help, as well as the files.
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