The input file must be in xls format, not xlsx.
We expect these columns in this order in the spreadsheet:
Family Student Current Classes Birth Date Age as of February 19, 2013 age as of June 10, 2013 Age as of November 1, 2013 Summer1 Summer2 Summer3 Summer4 Summer5 Summer6 Summer7 Summer8 Summer9 Summer10 Summer11 Summer12 Fall1 Fall2 Fall3 Fall4 Fall5
Note: Excel Formula for age is:
(where D2 is the birthday, and 6/11/2012 is the as of date.)