Not nearly enough info. I can see you're still on Windows XP but beyond that nothing.
What version of InDesign? Do other files open?
Indesign cs6, windows XP only. we are working with blaklining plugin. while doing edits file corrupted.
I'm afraid if the file is corrupt, there's little you can do beyond going to a back up. You might want to read this for future use in avoiding this type of thing: Why I Always Work in a Dropbox Folder and Why You Should, Too!BobLevine.us