SSIS - Flat file always ANSI never UTF-8 encoded

Question

Have a pretty straight forward SSIS package:

• OLE DB Source to get data via a view, (all string columns in db table nvarchar or nchar).
• Derived Column

Answer 1

Adding explanation to the answers ...

setting the CodePage to 65001 (but do NOT check the Unicode checkbox on the file source), should generate a UTF-8 file. (yes, the data types internally also should be nvarchar, etc).

But the file that is produced from SSIS does not have a BOM header (Byte Order Marker), so some programs will assume it is still ASCII, not UTF-8. I've seen this confirmed by MS employees on MSDN, as well as confirmed by testing.

The file append solution is a way around this - by creating a blank file WITH the proper BOM, and then appending data from SSIS, the BOM header remains in place. If you tell SSIS to overwrite the file, it also loses the BOM.

Thanks for the hints here, it helped me figure out the above detail.