Header: offset 2 contains 2 byte length of header block (always 2048 little-endian (0008h)); 0ffset 4 a 1 byte code of 00 or 02 for indexed or non-indexed database table, respectively; offset 5, 1 byte indicting maximum block size ( 1 = 1024, 32=32768 in steps of 1 k); offset 39h or 57 decimal a byte indicating table version (0Ch) ; offset 5Ch or 92 decimal 00000000h indicating file is not encrypted.