Conversion of csv files to arff file format

It appears that .arff files can only be produced by Weka data mining software, which means that the only way to create from .csv file would be to import that to Weka and use the data for making .arff files. Everything points to the original tool being the only way how  achieve csv to arff conversion.

Open CSV file    Open ARFF file

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Weka

A machine learning software to solve data mining problems