File structure version (as 4 bytes)
Firmware version (as 4 bytes) used to create this file.
Example: Major.Minor.Patch.Beta.
File type identifier.
Example: TI for instrument.
Size of the instrument data (bytes)
File type as a number.
Currently always: 1 (= instrument)
Various instrument file headers. Can be ignored, as they will be auto-created for you.