EXFO FTB-5500B PMD Analyzer - Manual (Page 85)

Exporting PMD Files with the File Converter
Polarization Mode Dispersion Analyzer 77
Setting Export Parameters
3. If you selected a conversion to the ASCII format, from the Settings
function tab, select all the boxes corresponding to the information you
want to export.
Note: If you select Interferometric Envelope, all points acquired during the test
will be exported.
4. From the Export Folder panel, click the Browse button to specify in
which folder the exported files will be stored.