EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 273)

Analyzing Traces with the Bidirectional Analysis Application
OTDR 259
Exporting Unidirectional Traces from Bidirectional Files
Exporting Unidirectional Traces from
Bidirectional Files
You can export all data from the A->B and B->A traces that were used to
generate a specific bidirectional measurement. The files that you export
are in native .trc format that can be opened with the OTDR application.
Note: Traces in Telcordia (Bellcore) EXFO version 200 format, will also be
exported to a native .trc format, but operations allowed on them will be
limited.
The exported file will contain all the wavelengths that are available in the
bidirectional file. The application names the exported files as follows:
Bidirectional File Name_XX.trc
Direction (AB or BA)
Name of the current
bidirectional file