I got an "Out of Memory" message while editing a file and had to use Windows Task Manager to close InDesign. When I restarted InDesign and attempted to open the file I got the message: Cannot open "[filename]". The file "[filename]" is damaged and cannot be recovered (Error code: 5).
I have no backup of the file.
I then tried to open an earlier version of the file and got the same error message. It seems to be corrupting every file I try to open. HELP!!!
You need to empty the InDesign Recovery folder. It's hidden so you need to set Explorer to show hidden files, then navigate to Users\<your user name>\AppData\Local\Adobe\InDesign\Version 7.5\<language>\Caches
That should allow ID to restart normally and let you open the last saved version of your file.