SPSS is a program used by many non-statisticians for simple to moderately advanced data analysis. It is among the most widely used programs for statistical analysis in the social sciences. SPSS was formerly known as PASW.
SPSS can handle data from different sources (text, spreadsheets, databases) and the results can be exported in different formats. It has a graphical interface with pull-down menus but it is also possible to use command programming syntax for those who prefer that.