Data sets are organized in the form of tables. The structure of the tables can be freely defined: any number of fields can be used to store the information consisting of the data necessary for the analysis itself, as well as accompanying information such as data record identifiers, dates, and comments. New data sets can be created from scratch, or can quickly be set up based on user-defined templates.

The contents of the data sets can be entered using the data set editor, but may also be imported from text and Microsoft Excel files, as well as pasted from the Windows clipboard.