csv to spba conversion is most likely related to import of contacts (previously export to CSV format) to Samsung Kies, so they can be added to the library.
In the past you had to do this sometimes manually, but nowadays you can just sync your contacts through your Samsung, or other social network accounts or even just e-mail accounts (Gmail, Hotmail). You have to just import your contacts to one device or account and sync it with the rest.
Updated: October 9, 2023