Export a Workflow Type from a Server/Schema

As a workflow admin I want to be able to export a workflow type from a server or schema for subsequent importing into another server or schema.

Practical use of functionality? Export a verified check, review and approve workflow for import on another server.
What is the impact of not doing this? Workflows will have to be set up from scratch on each server - a slow, manual process prone to error. (No matter how amazing the interface is.)

BCDE