Online Help says that in the report directory, the KFL report file names correspond to the KFL reports as follows:
HTML Report
New Passed: kfl_fail2error.html, kfl_tc_fail2error.html
Unexpected Error :kfl_fail2fail.html, kfl_tc_fail2fail.html
Missing (Not run): kfl_fail2failmissing.html, kfl_tc_fail2failmissing.html
Missing (test not found): kfl_fail2notrun.html, kfl_tc_fail2notrun.html
New Failure: kfl_fail2pass.html, kfl_tc_fail2pass.html
Old Failure: kfl_fail2newfailures.html, kfl_tc_fail2newfailures.html

Plain Text Report Files
New Passed: fail2error.txt, tc_fail2error.txt
Unexpected Error: fail2fail.txt, tc_fail2fail.txt
Missing (Not run): fail2failmissing.txt, tc_fail2failmissing.txt
Missing (test not found): fail2notrun.txt, tc_fail2notrun.txt
New Failure: fail2pass.txt, tc_fail2pass.txt
Old Failure: fail2newfailures.txt, tc_fail2newfailures.txt

But actually the description should be next (based on links from created HTML report)

New Passed: kfl_fail2pass.html, kfl_tc_fail2pass.html
Unexpected Error: kfl_fail2error.html, kfl_tc_fail2error.html
Unrelated Errors: kfl_otherErrors.html
Missing (not run): kfl_fail2notrun.html, kfl_tc_fail2notrun.html
Missing (test not found): kfl_fail2missing.html, kfl_tc_fail2missing.html
New Failure: kfl_newfailures.html, kfl_tc_newfailures.html
Old Failure: kfl_fail2fail.html, kfl_tc_fail2fail.html

The same issue is actual for plain text report