Open ARFF file

ARFF files: what are they and how do I open them?

arff file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
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Data related to Weka's attribute-relation

ARFF file are typically related to Attribute-Relation file format. This is a type of ASCII format utilized by the Machine Learning Project at the Department of Computer Science at The University of Waikato.

Further details:

ARFF (Attribute-Relation File Format) file is an ASCII text file that describes a list of instances sharing a set of attributes.

It was developed by the Machine Learning Project at the Department of Computer Science of The University of Waikato for use with the Weka machine learning software.

ARFF files have two distinct sections. The first section is the Header information, which is followed by the Data information. - The Header of the ARFF file contains the name of the relation, a list of the attributes (the columns in the data), and their types. - The Data section of the file contains the data declaration line and the actual instance lines. This format is essentially a CSV file with a header that describes the metadata.

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What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.arff" has the file extension "arff". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

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