Opening a BWW File

The BWW file type is primarily associated with DeSmuME.

BWW	File extension: BWW
	File type:	save file

What is a BWW file

BWW files mostly belong to DeSmuME. BWW files serve two distinct purposes depending on their origin.
In many cases the file is a game save file used by Nintendo systems. It stores a snapshot of ongoing gameplay, including progress, settings, and in‐game data. This type of file is often seen in titles such as Advance Wars or other Nintendo DS games. You would typically open such a file with a compatible Nintendo DS emulator such as DeSmuME.
Alternatively, BWW files can be used by music notation software. In this context, the file contains bagpipe music scores, with data that outlines musical staves, notes, and performance details. This use is associated with the Bagpipe Music Writer software from Bagpipe Reader.
Key points provided by FilExt.com include:

Game Saves: Stores game progress for Nintendo DS or similar systems.

Music Scores: Contains structured notation data for bagpipe music.

FilExt.com note: For further details on Nintendo DS save formats, visit this resource. Information on bagpipe score files is available at this page.

How can I open a BWW file?

You need a suitable software like DeSmuME to open a BWW file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your BWW file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BWW file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BWW Text Viewer

Choose your .bww file to analyze

or drag and drop it here

Online File Viewer

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BWW file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Knowledge is power - this also applies when dealing with unknown or faulty files. In the following you will find our evaluation of the BWW files:

The BWW file extension is not found very often and covers different formats for different programs. The file formats most commonly found in BWW files are:

• 35% of all BWW files start with the magic bytes 65 EF 00 8A, which are always the first bytes of this file format. These files are binary files, so they do not contain text, but only cryptic characters. BWW files are between 270 KB and 1 MB in size. This file type is new and state-of-the-art. A common filename is savegame-profile%23NXDSMWW.BWW.
• 25% of all BWW files are associated with Bagpipe notation. If you open these files in a text editor, you can view and read the content yourself. The file size is in the range of 1 KB to 4 KB. Several words can almost always be found in the files, e.g. MIDINoteMappings,(54,56,58,59,61,63,64,66,68,56,58,60,61,63,65,66,68,70,55,57,59,60,62,64,65,67,69), Bagpipe Reader:1.0, FrequencyMappings,(370,415,466,494,554,622,659,740,831,415,466,523,554,622 and Gold. These files are attributed to music and thunderstruck.

The remaining 40% of all BWW files are different files with different signatures. Often described as savegameprofilenxdsmww or backup. Drag & drop your file here to see the file format and a preview of your BWW file!