The Kodak Portra 160 Colour Film / 120 is a colour negative film great for portraits, fashion and commercial shoots. The film delivers superb performance both on-location and in a studio setting. Advanced emulsion technology provides sharp imaging, beautiful neutral skin tones and a finer grain than ever, making for excellent scanned colour reproductions. Get great shots with this film, even in challenging light. Targeted Advanced Development Accelerators speed up the film development process. The number of exposures the film yields will depend upon the format of the camera used.

Someone could better make use of these rolls as I am no longer shooting 120mm medium format - but happy to chat all things photography!

Although the film is expired, from my past experience shooting film this does not seem to effect the final outcome at all, whether on 135mm or 120mm. 
This subreddit seems to agree: https://www.reddit.com/r/analog/comments/137he8x/expiry_just_ordered_some_rolls_of_kodak_portra/

But since the merit of shoot results cannot be guaranteed, I wouldn't recommend shooting any commercial work on this. However if you're looking to practice medium format (trust me compared to 135mm medium format takes a lot longer to get a hand of) on some very high quality, reasonably priced film, you're more than welcome!