NX About various information included in ACIS file

Even if you select only a point when exporting the ACIS file, it includes body, lump, shell, wire, coedge, vertex information.

Why is the other object information output to ACIS file.

Everything is exported as a body to ACIS. So, the body will have the information about lump, shell, edges, and vertices. It’s primarily aimed at storing solid bodies.