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XLS Writer

DeprecatedKNIME POI Plug-in version 4.3.0.v202011211950 by KNIME AG, Zurich, Switzerland

This node writes the input data table into a spreadsheet of a workbook. The files can be read then with other applications like Microsoft Excel, for example.

The node supports two formats, which one is used is derived from the file ending.

  • If the file name ends with 'xls' (e.g. filename.xls) it will use the old Excel file format, which was used as default up until Excel 2003. The maximum number of columns held by a spreadsheet of this format is 256 (all additional columns in the data table are truncated). If the input data table has more than 65536 rows it is split into multiple spreadsheets (all stored in the created workbook).
  • If the file name ends with 'xlsx' (e.g. filename.xlsx) it will use the Office Open XML format, which is the default format starting with Excel 2007.

Note that if the destination location is a remote URL not all options are available because in general it's not possible to determine whether the remote location exists. In this case it will always be overwritten.


Output location
Enter a valid file name or URL. You can also choose a previously selected local from the drop-down list, or select a file from the "Browse..." dialog. Note the file format ending as described above.
Overwrite existing file
If checked, the output file will be overridden if it exists. If unchecked, the node will fail during execution in order to retain the original file and to avoid unintentional overwrite. Remote location will always be overwritten.
Open file after execution
Opens the file after it has been successfully written. The file will be opened in the default application of the system. This might not be supported by every system and is not available for remote locations.
Sheet name
Name of the sheet that will be created. If left empty, the name of the input table will be used.
Write column header
If checked, the column names are written out in the first row of the spreadsheet.
Write row ID
If checked, the row IDs are added to the output, in the first column of the spreadsheet.
Missing Value Pattern
Enter a pattern that is set for missing data values. If not specified, the corresponding data cell of the spreadsheet stays empty.
Autosize columns
Fits the columns width to the content.
Sets the print format to portrait or landscape.
Paper size
Sets the paper size in the print setup.
Exclude/Include columns
Select the columns that will be written in the XLS file. If the columns in the input table should change, they will automatically be excluded.

Input Ports

The data table to write out.

Best Friends (Incoming)

Best Friends (Outgoing)



To use this node in KNIME, install KNIME Excel Support from the following update site:


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

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