EDIT

This feature allows you to modify any existing DataSet in order to add new attributes, to correct some errors, etc.

Once the DataSet file is loaded (always in KEEL's format) its content appears on the table. Using the table view facilitates navigation across the content of the file. The table, its cells and the buttons situated over it you can perform some operations:

When you have made all the changes, you can save them to a file selecting the "Save" tab and introducing the file name.