Hi Jukka-Pekka,

> Is it possible to create a freeform curve (through points) by
> using xyz-list from text file?

This is possible using a plug-in custom command that Petr wrote, which you can get here:
http://kyticka.webzdarma.cz/3d/moi/#ImportPointFile

That has an option to create either point objects, a polyline, or a a freeform curve with the points loaded in from the file.

- Michael