Binary Objects to Files

This node takes all binary objects in a certain column of the input table and writes them, each as a separate file, into a directory. It will append the paths of the written files to the input table as well as the corresponding write status (created, unmodified, overwritten).

This node can access a variety of different file systems. More information about file handling in KNIME can be found in the official File Handling Guide.

Options

Binary object

Column containing the binary objects to write.

Remove binary object column

If checked, the column containing the binary objects is removed from the output table.

Compress binary object files (gzip)

If checked, the output binary files will be compressed to gzip.

File generation mode

Select how output file names should be determined.

Generate: Generate file names using a pattern with an incrementing counter.
From column: Use file names from a selected column.

File names

The file names will be generated using the provided pattern. The pattern must contain a single "?" symbol. This symbol will, during execution, be replaced by an incrementing counter to make the filenames unique. This node does not append any file extension.

File name column

Column containing the file names under which the corresponding binary file will be stored.

Folder

The folder to write the binary object files to.

Create missing folders

If enabled, missing folders in the specified path will be created automatically.

If exists

Specify the behavior of the node in case the output file already exists.

Fail: Will issue an error during the node's execution (to prevent unintentional overwrite).
Overwrite: Will replace any existing file.
Ignore: Will ignore if a file already exists and continues the copying process.

Input Ports

: Table that contains binary objects.
…: The file system connection.

Output Ports

: Input table with an additional path column that contains the paths of the written files, as well as another String column which holds the write status (created, unmodified, overwritten). The original binary object column is removed from the output if the option to remove is checked.

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Installation

To use this node in KNIME, install the extension KNIME Basic File System Connectors from the below update site following our NodePit Product and Node Installation Guide:

v5.10

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.10.0.v202601071138

On NodePit since: 2026-02-18

Last update: 2026-02-22

Tags: StreamableModern UI

KNIME versions: Since v4.3

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