Uploading from CSV with first and last name in the came column
If you are using excel / libre office / google sheets, you might want to use the built in spread sheet functionality to split the name column into two columns

https://www.google.com/webhp?sourceid=chrome-instant&amp;ion=1&amp;espv=2&amp;ie=UTF-8#q=how%20to%20split%20a%20name%20column%20in%20excel

Might be a lot easier and faster to do so locally.