Format Overview

Outlines the overall format for the File, Section, PropertyDictionary, and Properties.

See also:

• Known Data Types

File Format

Name	Length	Data Type
Header	0x20	Byte[]
Section Count	0x04	UInt32
Section[]	0x??	Byte[]
Footer	0x0C	Byte[]

Header

The header is 32 bytes long. The first 8 bytes seem to be some kind of ID. The rest of the data is the same until offset 0x14. The following 4 bytes appear to be a number. The ID for common.bmssv, pkprfl.bmssv, and samus.bmssv all use ID bytes D0 BE 2F 66 27 8B C8 19 and offset 0x14 has a value of 02 00 00 00. userdata.bmssv uses an ID of 6C 83 AF 6F 9C A8 5C 5A and offset 0x14 has a value of 01 00 00 00.

Name	Length	Data Type
ID	0x08	Byte[]
Unknown	0x0C	Byte[]
Index?	0x04	UInt32?
Unknown	0x08	Byte[]

Section Format

A Section is the top-level object that typically contains one PropertyDictionary. This is what describes what kind of data is being stored. The name is null-terminated and will always have a data type of BD 14 06 45 6F 93 A3 F7.

Name	Length	Data Type
Name	0x??	String
Data Type	0x08	UInt64
PropertyDictionary Count	0x04	UInt32
PropertyDictionary[]	0x??	Byte[]

PropertyDictionary Format

A PropertyDictionary is what actually houses the collection of Properties. While it does not have a name, it does specify a count which is used to iterate through the key/value pairs. It will always have a data type of ED 21 C6 2C 3C 8D 27 D7.

Name	Length	Data Type
Data Type	0x08	UInt64
Property Count	0x04	UInt32
Property[]	0x??	Byte[]

Property

A Property can vary based on its Data Type. Below is an example of the basic format of a Property. The key is null-terminated.

Name	Length	Data Type
Key	0x??	String
Data Type	0x08	UInt64
Data	0x??	Byte[]

See Known Data Types for a complete list.

Footer

The footer is 12 bytes long with a value of 48 C4 21 8C 5F 99 59 70 00 00 00 00. The footer is the same in common.bmssv, pkprfl.bmssv, and samus.bmssv. It is not present in userdata.bmssv.