Can the un-required fields in an import be left blank?

I am trying to get a csv file to import into the payroll using Sage 50 Accounting, and I was wondering if it will still work if I leave the un-required fields--such as, Employee First Name, Check Number, etc--blank and filled in the required fields?

So, looking in Excel, A (Employee ID) Filled in, B (Employee First Name) blank, …, F (Date) Filled in, etc.

Would Sage accept that import as long as the required fields were filled out in the proper locations? Thanks ahead of time!