On Wed, Sep 17, 2025 at 2:22 PM BADILLO AMADOR, ROSA MARÍA
<Rosa.Badillo@upct.es> wrote:
>
> Thank you very much, Allin.
> In Spain we use a comma as the decimal separator, so we export numbers that way from Excel. When Gretl is set to Spanish, the data and estimated models also reflect decimal commas. This hadn’t caused problems in previous versions of Gretl, but since last year we’ve been experiencing issues: our students send us .gretl session files and the usual icons (regression models, graphs, etc.) don’t appear.
> Do you think this can be fixed, or should we instead export the data using decimal points rather than commas?
> Rosa

Gretl aims to support the decimal comma for display purposes, but when
data are saved to file we try to ensure that the decimal point is
used. The problem you had was due to decimal comma being used by gretl
when writing (for example) the values of estimated coefficients in a
session model. That was a bug, it wasn't supposed to happen. Now, with
the latest gretl snapshots, that should be fixed. Specifically,

* session files written by gretl should not contain any problematic
numerical values, and in addition

* "new" gretl should be able to read successfully older session files
that were written using the decimal comma.

Allin
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