import from txt file

[icione]

Hello everyone
I have a problem, or perhaps a pseudoproblem, I imported the attached file via the txt-punti-line lisp, but there is no continuity of lines in the spiral (appearing intermittent lines), is a visualization problem?

I tried inserting the file both as 2d and 3d but the problem remains
(autocad use 2008) (garden is disabled)
Thank you.
Icitation

 

[PlannerRoad]

missing the attached file you have not attached! ! !

 

[icione]

Sorry if I didn't respond right away, but I lost the file, I still think I understood the problem, I forgot that in the txt file you have to introduce a column of "data" identification
anyway thanks and again sorry.