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...YoungGun, the Data is generated by the Craft and/or the DJI-GO App that is to say the Remote obviously sends Ctrl Signals to the Craft, the Craft in turn sends Signals (Telemetry) back to the CS (Ctrl Station) which in this example is the Remote, the Phone/Tablet and the App.. DJI Inspire1 & Phantoms also generate an OnBoard File Proprietary .DAT File that contains much of the same data and more.. DJI is currently the only one that can view this file and they use it for warranty claim diagnostics.. (DJI Log Converter reports to be able to view the FLYxxx.DAT from the Phantom3's, I have not used or seen any of their results and they charge 1$ per)
..the DJIFlightRecord_*.txt is the File generated on the Tablet/Phone that can then be used to Diagnose your Flight and Craft by way of a few different Online Converters, for example: PhantomHelp Log Viewer, or Healthy-Drones.. basically these converters take the DJIFlightRecord_*.txt file and extract the data into a CSV type file, PhantomHelp then displays a portion of that CSV File on the Web Site, it also allows you to dwnld the CSV and the KML it generates from the CSV data.. PhantomHelp in the early days and still is a great service considering that DJI decided to put this data into the .txt file in a format that is not readily view-able with a standard txt file viewer/editor.. where Healthy-Drones stands out as the Current Best Online DJIFlightRecord_*.txt Converters is that in addition to the bare-bones CSV and KML's the developer has gone to great effort to then compile that data using algorithms and then display it in a graphical format.. so, what advantage is it to have these pretty charts and graphs? you can then do real preventative/predictive maintenance on your craft to keep it Safe and to protect your investment in it AND Obviously to learn from it.. Healthy-Drones has a Free-Acct that allows you to upload and store up to 50 Flights.. the other accts are based on fee's and also allow more flight record storage, more data and are Very affordable in my opinion.. as I stated in an earlier post, I have no Vested Interest in Healthy-Drones, I do not personally know the Developer aside from a few emails back and forth diagnosing minor bugs within the service., also as I stated earlier if you fly these crafts and don't take advantage of at least one of these services you're flying blind and you fly at your (or others) peril.. it is simply irresponsible to fly these things beyond say the tree line in your own yard without some clue as to the state of the machine your flying...
...below are the links to the various Converters I spoke of:
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HealthyDrones.com - Innovative flight data analysis that matters
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https://www.phantomhelp.com/LogViewer/Upload/
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DJI Log Converter
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IIIDaemon
www.GasRecovery.net