The TXTlogToCSV application allows easy importing of flight data files from the tablet (in DJI Go folder) to convert to a common format like CSV. From there you can visualize or import it to your favorite data tool such as excel.

More info on the app and usage and supported log files here: https://phantompilots.com/threads/tool-win-offline-txt-flightrecord-to-csv-converter.70428/

Download the program for PC here: https://phantompilots.com/attachments/txtlogtocsvtool-zip.99978/