OK, refering to Dynon Support Help page 2: Lines 1-7 are header info,
Line 5 shows Record Type. They are GUID (what's this?), GPS, EFIS,
ALERT (98 of them!), AP, and (xxx) raw data. Total is 141 columns. Wow!
My question is: which one of the rows in lines 8 to-'end of data' contains
the MARK...