When setting up a skeleton in the Character Controls, you can export a template of the joint positioning, then re-use that template to build other similar skeletons.
To export a HumanIK skeleton template file
 > Edit > Skeleton > Export Template.
 > Edit > Skeleton > Export Template. 
            The global translation data for the joints is saved as a text file in the location you selected in the Export Template window.
To import a HumanIK skeleton template file
 > Edit > Skeleton > Import Template.
 > Edit > Skeleton > Import Template. 
            The skeleton that you created or loaded updates to use the joint positions from the template file.