$infile1 = "sept13.csv";
$infile2 = "sept14.csv";
		
open (infile1);
@array1=<infile1>;
close(infile1);
		
open (infile2);
@array2=<infile2>;
close(infile2);


##</code><code>##

The format of file(.csv) is as follows. 

Last Name, First Name, WebCT ID, Password, Courses
Calvert,Aaron,aacalvert,0120015,lib101                    
Accardo,Andrea,aaccardo,0110659,biol361h:cost280h:lib100