SF MOD File
http://www.jealousjellyfish.de/viewtopic.php?p=6689#p6689

Code:
Header
Offset Bytes (Typ)  Bedeutung
00     2 (short)    ID-Filetype
02     4 (long)     Anzahl der Polygone (m)
06     4 (float)    Zoom
0A     4 (long)     Anzal der Vertices (n)
0E     4            Unknown

Vertices n-mal
Offset   Bytes (Typ)   Bedeutung
00      4 (long)    id
04      4 (float)   x Koordinate
08      4 (float)   y Koordinate
0C      4 (float)   z Koordinate

Facelist m-mal
Offset   Bytes (Typ)   Bedeutung
00      10          Unknown (unknown[4] immer? 1 sonst error)
0A      4 (long)    Anzahl der Eckpunkte
0E      16          Unknown
1E      8           Poly Normal? (4x 2byte short)
26      8           Unknown
For each Vertex of this Face:
   Face-Texture-Coordinates
   Offset   Bytes (Typ)   Bedeutung
   00      2 (short)   X1
   02      2 (short)   X2
   04      2 (short)   Y1 (Range: 0-256)
   06      2 (short)   Y2 (Range: 0-256)

..      8          Unknown
..      7 (string)  Image File Name (Texture)
For each Vertex of this Face:
   Offset   Bytes (Typ)   Bedeutung
   00      4 (long)    Vertex Index
   04      4 (long)    Vertex ID
   08      4           Unknown