EXFO PSO-200 Optical Modulation Analyzer - Manual (Page 124)

Post-Processing and Reanalyzing Data
116 PSO-200
Reverting to Original File
Reverting to Original File
When working on a file, you might want to discard your changes and
retrieve the file’s last saved state. The following changes can be “undone”:

Information changed in the Current Acquisition Identification
window (available from the Properties menu).

Settings changed for the acquisition reanalysis (available from the File
> Reanalyze menu option).
This feature is available as long as you have not saved your work. When
you save, the application now considers this as the “original” file.
To revert to the original file:
From the File menu, select Revert to Original File.