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ARFF Format

Data format#

A description of the ARFF format can be found in the following articles:

Note how single quotes and spaces are handled:

Creating an ARFF file#

How to create an ARFF file on the fly, i.e., inside Java, you can find here:


CSV (comma separated value) files are able to be converted to ARFF format. See:


There is an XML-based extension of the ARFF format. See:

See also#

  • - a Python script for importing an ARFF file into a database (similar functionality to the weka.core.converters.DatabaseSaver class)