EXFO FTB -5240S/5240BP Optical Spectrum Analyzer - Manual (Page 249)

Managing Files and Test Configurations
OSA 243
Managing Measurement Files
To open a file:
1. From the Main Menu, Press File, and then press Open.
OR
From the main window, press .
2. If you had already acquired (but not saved) a trace, a warning window
appears, asking you if you want to save the current trace. Press Yes to
save the trace. Once the trace is saved, you can open a new trace.
Press No to display the new trace without saving the previously
acquired one. Press Cancel to return to the previous window.