Sometimes for the fiber optic engineers it's inconvenient to work with EXFO proprietary TRC ODTR trace files, and for such a cases based on my own experience I developed my trc2sor software converter. With my simple yet helpful utility application you could convert many TRC files to the SOR files. SOR files will be in Telcordia Bellcore standard file format supporting by all OTDR manufacturers (VIAVI, JDSU, AFL, etc.).