On Thu, Aug 28, 2025 at 2:24 PM Sven Schreiber
<sven.schreiber(a)fu-berlin.de> wrote:
 according to the doc of the open command, I think the following should
 work, no? ("If no filename suffix is given (as in the first example
 above), gretl assumes a native datafile with suffix .gdt.")
 <hansl>
 nulldata 10
 store dummyfile.gdt
 clear
 open dummyfile.gdt
 clear
 open dummyfile # fails
 </hansl> 
In fact, the shortcut of "we'll assume a .gdt suffix if no suffix is
given" is confined to data files that are supplied with gretl. I guess
that should be clarified in the doc.
Allin