EMIGALL training

I am looking for some good EMIGALL training. I have some background but need to deep dive. 

 

For example I can generate the load reports and import load data from a text file to generate business partners.  How do I put the load file onto the server or desktop for the ISMW /EMIGALL transaction to fetch for loading?    Do I need special authorization?

 

Basically I need a start-to-finish scenario to test a few EMIGALL data objects. The standard SAP documentation stops at a simple example and does not discuss how to pass a large 50M load file to EMIGALL for loading into SAP IS-U.