Calibration files can be loaded or saved in one of two ways.  In offline mode, a calibration file can be loaded into your PC's memory so that you can make changes offline and save them to disk.  In online mode, you will be sending calibration information directly to the ECU.

To load a file:

• From the pulldown menu, select FILE/READ ALL TABLES.
  
  
  
• Select a calibration file to load.  You may either double click the file or click the file once to highlight it and then click OPEN.
  
  

When you are in offline mode, once the file is loaded, you may make any changes you wish and save the changes to disk.  Once the changes have been made, the file can be programmed into the ECU when you are in online mode.

When you select a file to load in online mode, you should see a progress bar at the bottom of the screen.  When the bar fills up, the new calibration file has been loaded into the ECU.  The information you are viewing in the tables in online mode is what is actually programmed into the ECU.  Any changes you make to any tables or fields are immediately programmed into the ECU.

To save a file:

• From the pulldown menu, select FILE/SAVE ALL TABLES.  (The hot key for this operation is F12.)
  
  
  
• Enter a name to save the file under and press enter.  The calibration file name you select will automatically be given a .GCT file extension.