The main data file for this game is compressed. However models can be obtained from PCSX2 savestates (on a modern version of PCSX2 make a savestate and then use the program 7zip to extract eememory.bin).
Partial format of the models
XX=number of vertexes in a subsection.
00 00 00 C0 XX 68
{4ByteFloatingPoint Vertexes(X,Y,Z)}
80 C0 XX 68
{4ByteFloatingPoint UVCoords(U,V)}
40 C0 XX 64
{4ByteFloatingPoint Unknown#1 Unknown#2}
Partial format of the models
XX=number of vertexes in a subsection.
00 00 00 C0 XX 68
{4ByteFloatingPoint Vertexes(X,Y,Z)}
80 C0 XX 68
{4ByteFloatingPoint UVCoords(U,V)}
40 C0 XX 64
{4ByteFloatingPoint Unknown#1 Unknown#2}