Import free text invoices - Header and lines - from one excel file

I got a requirement to upload free text invoices into AX 2012 from one excel file. All the header and lines information was in one excel sheet so I had to came up with different solution than the import process described on many blogs or can be done through built in AX classes. However, those import process work perfectly if you have data into seperate files or only for one record. Here is the job which I used to import free text invoices into AX 2012. In this job I used a table CustomerInvoices...(read more)