On Tue, 20 Jul 2021, Sven Schreiber wrote: No, current gretl cannot do what you describe. The functions reaadfile() and curl() are about grabbing text buffers from internet sources, not binary streams such as zipfiles. Gretl can handle zipfiles internally (e.g. function packages that take that form) but such functionality is not available to hansl scripting other than via "pkg install". Leaving aside the "foreign" apparatus you can use shell directives from within hansl, if you have curl and unzip binaries installed. Allin