Conversion of xls files to arff file format

It should be quite possible to convert  data from Excel format (.xls, .xlsx) to ARFF format (basically xls to arff conversion) with tools like the Excel to Arff Converter, so users can  analyze the data and results with the WEKA Data Mining Utility.

Open XLS file    Open ARFF file

Related software

Excel to Arff Converter

A XLS to ARFF converter