PlanetsCentral

 +0 500 RECORDs of 200 bytes each: Notes for planets.
                 +0  100 BYTEs  Note #1
                +100 100 BYTEs  Note #2
 +? 500 RECORDs of 200 bytes each: Notes for starships.
                 +0  200 BYTEs  Note
 +? 500 BYTEs   ?
 +? 640 BYTEs   Color names, 16 BASIC strings of 40 bytes each
 +?  11 BYTEs   Colors for starships of the 11 races (0..15)
--- Host999 games ---
+? many BYTEs   unused
 +? 499 RECORDs of 200 bytes each: Notes for starships with Ids >500.
                 +0  200 BYTEs  Note
                This field starts at offset 302200 with the note for
                starship #501.

The notes are space-padded and can contain CR/LF. This file is extraordinarily large, that's why I omitted the 6-digit offset fields here.