Unfortunately, the .capx you have provided is irretrievable as it is missing virtually all the data from the .capx - only the Animations folder remains, with 1 item in it.
Did you have Autosave and autobackup set up? (i.e. did you backup 'off site')
Have you tested them all (by changing the suffix to ,capx)?
If so, there is nothing that can be done - the file structure is damaged.