.asm

Assembly file

.aux

Auxiliary parameter data file

.cel

Machine parameter data file

.cmd

File containing the CL command lines to insert

.dat

Data files created for editing, such as relations data

.drl

Holemaking parameter data file

.drw

Drawing file

.edm

Wire EDM parameter data file

.gph

User-defined feature file (including workcells)

.grv

Mill grooving parameter data file

.inf

Information data file

.memb

Assembly member information file

.mfg

Manufacturing process file

.mil

Milling parameter data file

.mtn

Tool motion parameter file

.ncd

CL syntax alias file

.nck

NC Check image file

.ncl

CL data file (including pre- and post-machining files)

.plt

Plot file

.ppl

Route sheet data file

.ppr

PPRINT settings table file

.prt

Part file

.ptd

Part family table file

.sec

Section file

.shd

Shade display file

.sit

Site parameter data file

.tph

Tool path storage file

.tpm

Tool parameter file

.trn

Turning parameter data file

.txf

Cutting tool transfer file

.xml

Tool parameter file, manufacturing process template file, mfg parameter settings file