You're wrong about this. The SQLite data format includes the schema, in plain ASCII. This self-documenting nature makes it an excellent data format, I've taken

You're wrong about this. The SQLite data format includes the schema, in plain ASCII. This self-documenting nature makes it an excellent data format, I've taken advantage of it numerous times in making use of SQLite-based application file formats. SQLite is put forth as a basis for an application file format, and by definition it must be sufficiently flexible to accommodate any application. But by including the schema, it is self-documenting as to what the structure is, which ZIP isn't and can't be. QED.