There is also a very basic way that I have done and tested before in word pad.
Select Search and Replace from the menu.
Check match whole word.
Find X-
Replace with V$
Then find X
Replace with X-
Then find V$
And replace with X
Do this also with your I values in arcs
FYI this is a great way to change the axis integers if you are wishing to convert a Z plane program to an X or a Y plane program on a universal milling machine.
"A Helicopter Hovers Above The Ground, Kind Of Like A Brick Doesn't"
Greetings From Down Under
Dave Drain
Akela Australia Pty. Ltd.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)