data tranfer from xperia z to note 4

[Android Question]

Hi i had sony xperia z upgraded to galaxy note 4....for data transfer from my old phone to new phone first i have to backup the old phone (backup file extension .dbk) the open samsung smartswitch program to use the backup file and restore it in my new phone, but the smartswitch program only looks for apple,blackberry and nokia backed up files....need help how to do this