Loading header and details information to separate tables

Hi,

 I am developing SSIS packages for my current project.  We get the data from different sources and for some files, we are getting header and details
 information in single row, also details information can be 20 line or more. I need to load this data to two separate tables.  I did googled on this, does not help much. Any help greatly appreciated.

Data format looks like below:

Order_Number, OrderDate, Amount, GrossCost, NetCost, Discount, Payment_Type..... Item 1 Product Code, Item 1 Quantity, Item 2 Product Code, Item 2 Quantity, Item 3 Product Code, Item 3 Quantity, Item 4 Product Code, Item 4 Quantity,........Item 25 Product Code, Item 25 Quantity

Thanks in advance