How to pack an xnb when you only have the png?

How do I pack a png into a xnb when I only have a png and no yaml?

 

Short answer you can't. You may be able to make your own yaml but I've yet to hear about anyone doing so.

 

you cant, so unpack the XNB you're trying to replace and get the .YAML from that

 

Thanks guys.

One more question, what exactly is the yaml used for?

 

I'm assuming the .yaml is used to make the packaged file readable. Most .yaml files, which can be looked at with Notepad++, just have this basic text in it;

Code:

xnbData:
    target: "w"
    compressed: true
    hiDef: true
    readerData:
        -
            type: "Microsoft.Xna.Framework.Content.Texture2DReader, Microsoft.Xna.Framework.Graphics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553"
            version: 0


    numSharedResources: 0

content:  #!Texture2D
    format: 0

extractedImages:
    -
        path: ""

Other .yaml files have different text in them, like the one that belongs to the hats.xnb in the Data folder, with the description of the various hats in the game and their associated achievements.

 

Thank you sir.