Here's description of the d3 binary format.
int - integer Type | Description -----+------- ---- --- -- - int | 32bit unsigned integer, little-endian (x86 style) - -------------------------------------------------------------------------- - str - string Type | Description -----+------- ---- --- -- - int | Number of bytes in the string byte | N bytes of data - -------------------------------------------------------------------------- - lstr - localized string Type | Description -----+------- ---- --- -- - int | Number of languages For each language: Type | Description -----+------- ---- --- -- - str | Language id str | String in language - -------------------------------------------------------------------------- - Format description: Type | Description -----+------- ---- --- -- - int | Magic 0x00013364, 'd' '3' 1 0 in reverse. d3 format version 1.0. str | Deck id str | Deck user data int | Card count For each card: Type | Description -----+------- ---- --- -- - str | Card id str | Tags to set str | Tags to clear str | Card user data lstr | Question text int | Number of answers For each answer: Type | Description -----+------- ---- --- -- - str | Target card id str | Tags needed to view this answer str | Tags that must not to be there to view this answer str | Answer user data lstr | Answer text
Comments, etc, appreciated, as always.