This is the specifications for the archive file which is handled by the Game Extractor plugin Archive_BIG_BIGF_2.

Endian Order:Little Endian
Compression:None
Encryption:None


This format is used by the following Games:
Colin McRae Rally 3 *.big
Race Driver 2: V8 Supercars 2 *.big
Race Driver 3: V8 Supercars 3 *.big
Colin McRae Rally 04 *.big
Colin McRae Rally 05 *.big
Sensible Soccer 2006 *.big *.b2k *.b64
TOCA Race Driver *.big
TOCA Race Driver 2 *.big
TOCA Race Driver 3: Honda Civic 2006 *.big


This is the format specification information:
 
// ARCHIVE HEADER
  4 - Header (BIGF)
  4 - Number Of Files
  4 - First File Offset
  4 - Padding Multiple (2048)
  20 - Description? Directory Name? (null)

// FILES DIRECTORY
  // for each file
    16 - Filename (null)
    4 - File Length
    4 - File Offset (relative to the start of the file data)

0-2047 - null Padding to a multiple of 2048 bytes

// FILE DATA  
  // for each file
    X - File Data
    0-2047 - null Padding to a multiple of 2048 bytes


Game Extractor is able to read files of this type, as well as files from thousands of other games. To give it a try, download Game Extractor (Basic Version) for free, and see what it can do.

For further information on this format, refer to the source code on our GitHub repository.