I was working on an InDesign document when my computer crashed. Now I have an error message that says the document may be damaged and when I try to open it, InDesign closes. Is there any way to recover the document? It was stored on the Creative Cloud and the only copy there is.
First thing would be to copy it back to your hard drive so you have it. Next, use File > Open... and change the opening option to "as a copy." You might get lucky.
If that doesn't work, there's a tool for Windows that might work: INDDRecovery — a program for restoring corrupted InDesign documents
And there's the Markzware recovery service: Bad InDesign or Quark File Recovery Submission Form
Markzware is only cost effective if the cost of redoing the file is going to be more than about $200.
CC storage is okay if you want to share a layout with others for comments but there are better alternatives for working on files. I'm a huge fan of Dropbox. While I can't give you any more info than Peter has, you might want to give this a read for the future: http://boblevine.us/why-i-always-save-files-in-dropbox-and-why-you-should-too/