Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 213)

PC NC Maintenance Manual Chapter 8: Fixed File Operations
8-11
8. The file list at the bottom right shows the name of the parameter
file to be restored.
9. Make sure the parameter file to restore is selected by touching it
in the list. The filename has the format ‘*****.prm’. When
selected, the background is yellow.
10. Touch the Restore button.
11. A dialog box appears to confirm that the restore process must be
performed. To continue, press the Start button.