To share the .dat file you would have to upload it to dropbox or similar and post a link to where you uploaded it.
However the .txt file is enough to eliminate some things.
Here's what your data looks like:
DJI Flight Log Viewer - PhantomHelp.com
It shows that you launched with a less than fully charged battery which can cause trouble.
But in this case it doesn't appear to be responsible.
At the time things started to go wrong, 2:29.1, the battery was reporting 14.47V which is well over the critical level of 3.3V.
The data also shows the Phantom spinning and tumbling under power as it fell.
This does not contradict the suggested cause of a broken prop.
If you could find the missing part of the prop, perhaps it might have some evidence to determine why it broke?