Dear Deepa,
Of course you can count this type of software with function points, but you should ask yourself what you want to measure and if it is useful to use functional size for that. The functionality is rather straightforward and the volume of data to be migrated is probably more important than the functionality.
With regard to the logical files, I see at least two:
- A logical file with information on the path and document name for the migration process
- A logical file with information on the individual documents: type, size, hash for verification of migration integrity
Regards, Frank