Sorry to raise an issue which has been raised before (see http://lists.wfu.edu/pipermail/gretl-users/2013-January/008426.html) If I take a csv file date, value 2013.01, 3.145 2013.02, 6.290 Then import in gretl (v1.9.12 build date 2013-13-15) gretl still fails to recognise a timeseries! : using delimiter ',' longest line: 16 characters first field: 'idate' number of columns = 2 number of variables: 2 number of non-blank lines: 3 scanning for variable names... line: idate,value scanning for row labels and data... treating these as undated data note it also re-labels the date column as idate Any ideas?