EXFO FastReporter 2 - Manual (Page 290)

Generating, Previewing and Printing Reports
280 FastReporter 2
Generating Reports (FR2-FC Mode)
5. You can have the report generated in one file, or multiple files
depending on the number of rows or matched groups present in the
window. To separate the report into multiple files, select the
corresponding option.
6. If you select a multiple-file report, select how the files are named:

Identifiers: the identifier present in the measurement

Original Measurement Filename: the measurement file name.
Note: If you clear the Generate individual report files option, the Launch
report viewer option is automatically selected.
Note: If you want to generate the report for more than one measurement files, the
list of measurement files involved in the group of matched measurements
is displayed in the Select Report Filename window.
7. Select whether you want to generated the file name based on the
measurement, or if you want to enter a customized name.