Gnu Regression, Econometrics and Time-series Library
gretl is a cross-platform software package for econometric analysis, written in the C programming language. It supports formats include: own XML data files; Comma Separated Values; Excel, Gnumeric and Open Document worksheets; Stata .dta files; SPSS .sav files; Eviews workfiles; JMulTi data files; own format binary databases (allowing mixed data frequencies and series lengths), RATS 4 databases and PC-Give databases.
