Here are files that list only the NGC and IC objects. Superposed and nearby stars, companions, included knots, and all the other miscellaneous stuff has been removed.
The only exceptions are objects with no firm identifications. Those have positions from original 18th or 19th century sources flagged "nominal" following the NGC/IC number on the first line, followed by candidate objects -- on as many lines as necessary -- with modern positions. Objects with no candidates have a single "nominal" entry.
Here are a the statistics for the missing objects.
There is a lot of "by hand" work in these files. In particular, all the extraneous stuff was removed by hand, the notation "nominal" was entered by hand, as were all the types and miscellaneous data. All this was done with constant reference to the original "ngcpos.all" and "icpos.all" files, as well as the Notes files, but bugs are likely. In particular, I do not know yet if all the objects have entries in the files. I believe they do, but I'll have to write a little program to find out. You've been cautioned!
Latest update, this file: 19 June 2018.