View source for XNA Game Studio 4.0 XNB

{{GRAFPageHeader}}
== XNB == 

* ''' Format Type ''':    Archive <br> 
* ''' [http://en.wikipedia.org/wiki/Endianness Endian Order] ''': Little Endian <br>
* ''' Signature ''':    XNB <br> 


=== Format Specifications === 

<div class="toccolours mw-collapsible" id="mw-customcollapsible-myDivision" style="width:800px; overflow:auto;">
<pre>
// XNB file format
// little endian

//header
3 bytes (char) - signature // "XNB"
1 byte (char) - target platform // "w" - Microsoft Windows
                                // "m" - Windows Phone 7
                                // "x" - XBOX 360
                                // "d" - Windows??
                                // "S" - Nintendo Switch
                                // "v" - PlayStation Vita
1 byte (uint8) - XNB format version  // 5 = XNA Game Studio 4.0
1 byte (uint8) - flags   // bit 0x01 - content is for HiDef profile (otherwise Reach)
                         // bit 0x80 - asset data is compressed
4 bytes (uint32) - total file size
if compressed_flag == True:
    4 bytes (uint32) - uncompressed file size


// Note: If the file is compressed (flag bit 0x80 is set), data from this point on 
// is packed using the Xbox XMemCompress API


// type manifest
7BitEncodedInt - type reader count
type_reader_count *
{
   7BitEncodedInt - string length
   x bytes (char) - type reader name  // e.g. "Microsoft.Xna.Framework.Content..."
   4 bytes (int32) - reader version number  // e.g. 0
}


// data
7BitEncodedInt - shared resource count
primary asset data
{
   7BitEncodedInt - resource type   // e.g. 1 - Microsoft.Xna.Framework.Graphics.Texture2D
   x bytes - resource data
}

shared_resource_count *
{
   x bytes - shared resource data
}
</pre>
</div>

=== Notes and Comments === 

* Some files may be compressed with '''LZ4''' or with '''Xbox XMemCompress''' compression.

=== Games === 
List of games using this file format:
* Bleed (PC) (*.XNB)
* Bleed 2 (PC) (*.XNB)
* Bloody Trapland (PC) (*.XNB)
* Bury me, my Love (PC) (*.XNB)
* Celeste (PC) (*.XNB)
* Plants vs zombies (for Windows Phone 7)
* TowerFall Ascension (PC) (*.XNB)
* Many more...

=== QuickBMS Script === 

* [http://aluigi.altervista.org/bms/xnb.bms xnb.bms]

=== Compatible Programs === 

* [https://github.com/Athari/XnaConvert XnaConvert]
* [https://github.com/Pyroglyph/XNBExporter XNBExporter]
* [https://github.com/qnnnnez/XNBEditor XNBEditor]
* [https://github.com/Inari-Whitebear/SimpleXNBDemapper SimpleXNBDemapper]
* [https://github.com/TimothyCates/XNB_Kit XNB Kit]
* [https://drive.google.com/file/d/12WsIpXc26jMe4-6O2gDyI9IOz7tEW3_T/view?usp=sharing xnbdec]
* [https://github.com/LeonBlade/xnbcli xnbcli]

=== See Also === 

* [https://drive.google.com/file/d/1AX9Cx7Gm6DF-tBk5VHG1P92Pwz7At_Yn/view?usp=sharing XNB file format + parser]
<br/><br>


[[Category:Complete Complete|XNA Game Studio 4.0 XNB]]
[[Category:Platform XBOX|XNA Game Studio 4.0 XNB]]
[[Category:Platform PSVITA|XNA Game Studio 4.0 XNB]]
[[Category:Platform Nintendo Switch|XNA Game Studio 4.0 XNB]]
[[Category:Platform X360|XNA Game Studio 4.0 XNB]]
[[Category:CE Compressed|XNA Game Studio 4.0 XNB]]
[[Category:Format_Archive | Type: Archive]]
[[Category:Extension_xnb | Extension: xnb]]
[[Category:LZ4 compression]]
[[Category:File Format]]