I have a problem with a corrupted file in Word 2013. I have faced with this message:
The filename.docx cannot be opened because there are problems with the contents.

Details: Unspecified Error

Location: Part: /word/document.xml, Line: 2, Column: 0

I've put the file in this address. i'll be thankful if you can repair it.
https://www.dropbox.com/sh/fg9tuoqb77sakl9/qnmxhCC3cW