July 2013 2.7 Software 159
 Press the NCV → iTNC soft key.
 In the upper part of the window, you select the folder containing the *.zip 
file of the new NC software. The folder contents are displayed in the lower 
part of the window.
 To switch to the lower part of the window, press the FILES soft key. To 
return to the upper part of the window, use the PATH soft key. In the lower 
part of the window, select the *.zip file of the new NC software with the 
cursor keys and press ENT. Following that, the NC software exchange will 
start.
 All NC software versions that exist in the control are shown in the following 
list box.
 Select the new NC software with the arrow keys and press the SELECT soft 
key. The selected NC software is marked with an asterisk (*) in the Sel 
column. Confirm your selection with the YES soft key. The control activates 
the selected NC software and performs a reset. Press the END key, the NO 
soft key or the END soft key to exit the list box without making a new 
selection.
 If required, complete or delete the machine parameters.
 While in the Programming and Editing operating mode, press the MOD key.
 Enter the code number 95148 and confirm your entry with the ENT key.
 While in the Machine-parameter programming mode, press the MOD key.
 Press the UPDATE DATA soft key.
 Press the ASC → BIN soft key to convert the files on the hard disk from 
ASCII format back to binary format.
 Read-in files which you had saved to a PC.
 The NC software exchange is completed.
 With the COPY SAMPLE FILES soft key, the HEIDENHAIN standard tables for 
cutting data, the tilting-axis geometry, and the M-function macros as well as 
a prototype for a freely definable table (contains only the column Name) can 
be copied into the corresponding directories.
Equivalent file name extensions in ASCII and binary format
.H .H% .I .I% .T .T%
.TCH .TC% .D .D% .P .P%
.PNT .PN% .COM .CO% .CMA .CM%