DAT for the Mavic Air, Mavic 2, Mavic Air 2, and Mavic Mini is encrypted and can not be processed by either DatCon or CsvView. To use one, or both, of these apps just download and install on your PC, Mac or Linux machine.
CsvView and DatCon are free offline apps that provide the means to analyze log files produced by the Phantom 3, Phantom 4, Phantom 4 Pro, Inspire 1, Spark, and Mavic Pro drones.