Edit Deformers > Export Deformer Weights >

Opens the Export Deformer Weights Options, where you can set the options for exporting deformer weights as an XML file.

Existing nodes

Lets you select from a drop-down list of the deformer nodes in your scene.

File name

Enter a file name for the weight map.

By default the weight map is saved to your current project directory. Click the folder icon to browse to a different directory.