Thanks Floyd. I think that information in the upload document with the sample type of validation file would me most helpful:
Valid upload file for testing
Here is an example of a simple valid upload file:
username,password,firstname,lastname,email,course1,group1,cohort1
jonest,verysecret,Tom,Jones,jonest@someplace.edu,math102,Section 1,year 3
reznort,somesecret,Trent,Reznor,reznort@someplace.edu,math102,Section 3,year 4