SAVING FLOWS
After creating the output file, you should also save the created flow so that you can re‐run or edit it at a later point in time.
To save the flow, click File, click Save, and enter a name. Flow files use the TFL file format.
To open a flow, choose Open in the File menu. If new rows of data have been added to the underlying data sources, simply run the flow again to overwrite the output file with the newly processed data.