This short file contains the following information, all stored in two byte numeric fields.
|0 (0x00)||Next spotted UFO number|
|2 (0x02)||Next Terror mission number|
|4 (0x04)||Next built Alien Base number|
|6 (0x06)||Number of minimized interceptor windows (but see Discussion)|
|8 (0x08)||Next Ground Assault number|
|10 (0x0A)||Next Waypoint number|
|12 (0x0C)||Next Skyranger number|
|14 (0x0E)||Next Lightning number|
|16 (0x10)||Next Avenger number|
|18 (0x12)||Next Interceptor number|
|20 (0x14)||Next Firestorm number|
|22 (0x16)||Current Game Year (1999, (0x07CF) for a lot of the time)|
|24+ (0x18)||Monthly score related values, Jan to Dec (See below)|
These Alien Base and Terror mission numbers may be the wrong way around, because I was at the same number of both in all the saves I have, coincidentally.
Score earned by completing research projects in January increase the value at Offset 24 (0x18) as you complete them, then at the end of the month this value is also increased (by 400 in one example, couldnt find any obvious correlating value to explain that amount yet). Presumably it is something you are scoring that is non location specific, but not sure what exactly. Later months are then stored in the later offsets, increasing by two each time.