...
- Try changing your excel format to .xls instead of .xlsx or visa versa
- Make sure that the spreadsheet tab says Sheet1
- Make sure that the 2nd row in the spreadsheet has the CONTROL line.
- Make sure to leave the Header and Control Lines (Rows 1 and 2), You can enter your data starting row 3.
- Make sure your date is formatted correctly. The column description pages currently incorrectly state to set up dates as DD/MM/YYYY but should be MM/DD/YYYY
- Use a leading apostrophe in the event of a code with leading 0s.