Export file format
The Smile payment export file is a CSV formatted document, in Unix flavour, UTF-8 encoding.
It contains three record types:
Commas separating unused columns at the end of a line may not be omitted.
Note: The CSV file may contain more fields in the future. The fields documented below will
always appear in the same order; new fields will be appended to the end of the line. Clients
should implement their importers assuming that more fields may appear at any time without
warning. Any fields not documented in this file must not be depended upon for any
purpose.