In the Tools toolbar, select either the Brush , Pencil or Eraser tool.
Open the Brush Preset menu and select Import Brushes.
In the browser window that appears, navigate to and select the .xml file in which you exported your brush presets.
The Import Brushes dialog box opens.
By default, the presets for any tools included in the file will be selected for import. If you only wish to import presets for specific tools, uncheck Select/Deselect All and select the tools for which you want to export the presets
The imported brush, eraser and pencil styles will appear in the Presets list.