Audio clean up of .omf or .aaf files

My DOP contact asked me if I can do audio clean up for him. Currently I have Izotope RX9 Standard, and DaVinci, but not ProTools or Logic.

He is editing in Premier Pro, and had sent me a 1hr multi track recording audio in both .omf and .aaf format. I can't open either of them. RX9 says "this version" can't open these files. 

What to do? I am prepared to buy the necessary if it will do the job.

Audio clean-up is rarely done with off or aaf. Tell him to send you WAV or AIFF files instead. Open RX9 as a stand alone application to clean things up.