When I save a CS6 InDesign file as an .idml file InDesign crashes and sends a report to Adobe.
When I restart InDesign the .idml file is in the directory as well as a locked InDesign file.
I cannot open the .idml file, instead I get the message:
Cannot open "" file. Adobe InDesign maynot support the file format,
a plug-in that supports the file format may be missing,
or the file may be open in another location.
I can however open an InDesign .idml file that was saved from InDesign CC software.
InDesign CC software is also unable to open the .idml file that I created in CS6.
It seems to be a corrupted IDML file. Does it happen with every file or only with that one.
What is the content of that file? Did you embed images or graphics or did you ink them? Size?
Maybe that this would help you: Re: InDesign 6 is crashing when attempting to open a particular document. All others are opening OK.