Remove high frequency hiss

Hello!
I have ripped a 1987 cassette and I want to remove the high frequency noise to make the recording sound even better. I’ve already denoised and mastered the recording but the next step is to remove the hiss from the high frequencies.
The recording: 49.32 MB file on MEGA
Thanks!

I’m at work and I can’t listen to your file…

How did you do that? Hiss is noise.

…If the hiss is bad, the cure can be worse than the disease. …But AI is getting smarter every day!

Maybe you have better speakers (or ears) than me but I think your audio sounds pretty good already.
Mark B

Using FL studio (best noise remove freeware I could ever find)