Extracting pop from RAWs - and a quick rough and ready attempt

[Wolfgang ([ Win10, PL+VP+FP, Nik7 / 3.3 ])]

Yes, I was wondering about the reported file size

Maybe the OP can enlighten us and if so

is the result of multiple exposures when using a handheld camera with a relatively slow shutter speed and/or in a windy area.