I have a quite complex model with a lot of curves (nearly 3000...). Now I need a reduced version where each curve is represented by a line, only the start and end points of each curve should remain, all points in between should be deleted. Is there a way to do this automatically?

I'd appreciate any help on this...

cu, Matthias

Select all then
Press the key Tab and Type rebuild ;)

See also reconstruct
http://moi3d.com/forum/messages.php?webtag=MOI&msg=3661.1&highlight=yes
http://kyticka.webzdarma.cz/3d/moi/#ReconstructCurve

thanks a lot for the fast answer. Works fine (and saves a lot of time...)

cu, Matthias