KNIME Base Nodes version 3.6.0.v201807061308 by KNIME AG, Zurich, Switzerland
This node takes a base directory path, a file name, and a file extension to create a new file path. Inputs can be entered in the configure dialog, or optionally set by flow variables. The output is a flow variable, which can typically be used as input for a writer node (e.g CSV Writer, Table Writer, etc).
To use this node in KNIME, install KNIME Base Nodes from the following update site: