Чувак напилил уже кучу статей с картинками по импорту разных данных через DIXF.
http://shafeaa.blogspot.co.nz/p/di.html
Import Data From an ODBC Through DIXF
Convert Field Values During The Importing Process Through DIXF
Assign Default Values Automatically During the importing process through DIXF
Assign Default Values Automatically During the importing process through DIXF
Configure DIXF To Automatically Generate Unique Key Using Number Sequence
Importing purchase orders using DIXF
Import Released products using DIXF
Import Projects using Data Import framework AX 2012 R3
Import Workers using Data Import framework AX 2012 R3
Import Assets using Data Import framework | AX 2012 R3
Import Vendor Groups using Data Import framework | AX 2012 R3
Import Main Accounts using Data Import framework | AX 2012 R3
Import Vendors using Data Import framework | AX 2012 R3
Import Customers using Data Import framework | AX 2012 R3
Import Financial Dimension using Data Import framework | AX 2012 R3