When you configure a flat file connection, you must select the runtime environment to be used with the connection. If you select a runtime environment with Secure Agents that run on Linux, you cannot specify a Windows directory for a flat file target.
A flat file connection cannot use a Secure Agent that runs on NTT. Therefore, do not select a runtime environment with Secure Agents that run on NTT.
When you select a flat file connection in a mapping or task, you choose the formatting options for the flat file. When you choose the formatting options in a Source, Lookup, or Target transformation, you specify whether the flat file is a delimited flat file or a fixed-width flat file. If the flat file is a fixed-width flat file, you select a fixed-width format from a list of fixed-width formats that you configured. If you plan to use a fixed-width flat file, you need to create at least one fixed-width format before you select a fixed-width flat file in the Mapping Designer.