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NodeNode / Source

File Reader

IO Read Streamable
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Reads the most common text files. To auto-guess the structure of the file click the Autodetect format button. If you encounter problems with incorrect guessed data types disable the Limit data rows scanned option in the Advanced Settings tab. If the input file structure changes between different invocations, enable the Support changing file schemas option in the Advanced Settings tab. For further details see the KNIME File Handling Guide File Handling Guide .

Note: If you find that this node can't read your file, try the File Reader (Complex Format) node. It offers more options for reading complex files.

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.

Parallel reading : Individual files can be read in parallel if

  • They are located on the machine that is running this node.
  • They don't contain any quotes that contain row delimiters.
  • They are not gzip compressed.
  • No lines or rows are limited or skipped.
  • The file index is not prepended to the RowID.
  • They are not encoded with UTF-16 (UTF-16LE and UTF-16BE are fine).

Node details

Output ports
  1. Type: Table
    File Table
    File being read with number and types of columns guessed automatically.
File System Connection (Dynamic Inport)
The file system connection.
  1. Type: File System

Extension

The File Reader node is part of this extension:

  1. Go to item

Related workflows & nodes

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  3. Go to item

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