Specifications
137 
Southwestern Industries, Inc. 
TRAK LPM Programming, Safety, & Operating Manual 
Use the Open As box to tell the ProtoTRAK PMX CNC what kind of file it is 
Use the Open As box to tell the ProtoTRAK PMX CNC what format the file is in so that 
it knows how to convert it to the ProtoTRAK PMX CNC format. In the image above, the 
ProtoTRAK PMX CNC could guess that the file to be converted was from a previous 
version of ProtoTRAK because of its file extension (.mx3). But since file extensions may 
be missing or may not really describe the file format correctly, you can use the Open As 
box to declare the file type. 
The drop-down menu in the Open As box shows which converters are available. If a 
converter is not listed, you can check to see if it is activated (see section 3.1.6). 
14.9.3 Converting From the ProtoTRAK PMX CNC to a Different Format 
Files, or programs, are converted from the ProtoTRAK PMX CNC to a different format 
using the Save function of Program In/Out Mode. 










