STEP 4 Concatenate the Text files into a single file

August 2022 - NOTE - all tasks listed below can now be handled by the BAT file at

FAA-PROCESS.TXT

Open DOS command window
Go to C:\data\FAA

Enter :
C:\data\FAA type SD*.TXT > DATA.TXT

You can then Delete the 10 sd*.txt files

Data.txt should be now somewhere between 100-200 mb.
(The FAA processes about 50-60k records per year)