IDX format:
Header 12 byte: 47H 41H 42H 41H 02H 00H 00H 00H and number of files (Little Endian form), 4 byte
Files 36 byte: filename 16 byte (extended with some additional data, exact circumstances unknown) offset 4 byte, size 4 byte, frequency 4 byte, flag 4 byte, chunk size 4 byte.
Except filename, all are little-endian.
IDX format:
Header 12 byte: 47H 41H 42H 41H 02H 00H 00H 00H and number of files (Little Endian form), 4 byte
Files 36 byte: filename 16 byte (extended with some additional data, exact circumstances unknown) offset 4 byte, size 4 byte, frequency 4 byte, flag 4 byte, chunk size 4 byte.
Except filename, all are little-endian.