In order to upload a file, it should contain plain text data in a CSV or TXT format.

A CSV file is a text file that contains one line per record of data, and all the fields within a record are separated by commas.

Examples:

CA,123456789,49,2155,2001,7,3,2032.27,122,200,50000,0,0,0,0,0,Whyte,Lily,19500401,F,12345

CA,456789123,49,2155,2001,6,3,670.65,61,200,33000,0,0.5,0,20000102,0,Greene,Kelly,19740321,F,23456

CA,456789123,49,2155,2001,6,74,30.48,2,200,33000,0,0,0,20000102,0,Greene,Kelly,19740321,F,23456

Notice that each record is on its own line and each line has the same number of fields separated by commas.