Hi @Christopher Jack ,
Thanks for your reply, please refer below test.
Update:
To edit the column name or add a new column, you may edit the connection manager for flat file in advance.
It should work in this way like shown.
About Flat File Destination, refer this official documentation: flat-file-destination
Regards,
Zoe
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4: https://learn.microsoft.com/en-us/answers/questions/142427/users-always-get-connection-timeout-problem-when-u.html 2: https://learn.microsoft.com/en-us/sql/integration-services/data-flow/flat-file-destination?view=sql-server-ver15