It's a SQLite database with various tables for your aircraft, wnb, recents, plans, checklists, settings. For example, my aircraft table:
id = 1
tail = N342ME
type = C182
wake = LIGHT
icao = A3C5D4
equipment = SGR
cruiseTas = 140
surveillance = EB2
fuelEndurance = 6.5
color = W/B/T/M
pic = BRADLEY SPATZ
sinkRate = 700
fuelBurn = 12.5
base = KGNV
whereas my "recent" table is:
id LocationID FacilityName Type ARPLatitude ARPLongitude
--- -------------- ------------------------ --------- ---------------- -----------------
4 X60 WILLISTON MUNI AIRPORT 29.354605 -82.4705636111111
29 BOCAP BOCAP YREP-PT 30.1864277777778 -82.1324222222222
30 GENOD GENOD YREP-PT 35.5516777777778 -81.9491805555556
89 6A4 JOHNSON COUNTY AIRPORT 36.4178452777778 -81.8251338888889
98 X35 MARION COUNTY AIRPORT 29.0617672222222 -82.3766194444444
99 IGOTE IGOTE YWAYPOINT 30.7021166666667 -84.0740138888889
104 KTVI THOMASVILLE RGNL AIRPORT 30.9014722222222 -83.8814444444444
105 24J SUWANNEE COUNTY AIRPORT 30.3003888888889 -83.0243888888889
109 KTVI.R04.HETOS KTVI.R04.HETOS Procedure 30.616575 -83.9552388888889
111 2FD2 MARJORIE KENNAN RAWLINGS AIRPORT 29.4794444444444 -82.0533472222222
112 KGNV GAINESVILLE RGNL AIRPORT 29.6900555555556 -82.2717777777778
SQLite is very cool (and free) software. It's built into just about everything (Windows, Macs, phones, cars, TVs, etc.) and the file (user.db) is portable between systems. You can fiddle with it via
https://sqlite.org/fiddle/ and "Load DB" and then ".tables" and "select * from settings" etc.
Warning: from a cursory review of the AvareX source code, the database schema may be subject to change, so caveat emptor.
Blue Skies!