You need a special processor. It looks a bit like a bulk film loader, only smaller, with a sort of handle. You put the cassette into the chamber, wind the film out into a second chamber to sandwich it with an additional layer, past a gel developer applicator. It's all fairly automatic but you need the processing parts, not just the film. Then after 1 min 30 seconds (I seem to remember) you wind the film back into the original cassette fairly rapidly, if you do it unevenly the process can be spoiled. The developer layer and gel gets wound up in a disposable cartridge which you then throw away as it is caustic (probably illegal now). The film is finally fed back out of the original cassette and cut up and mounted. This also uses a special mounting jig, because the slides are extremely fragile and can not be handled. The jig helps you view and cut each frame and get it into the plastic slide mount. After a day or so, they are less fragile.
Look for the second part cartridges (the film may be packed with them, or not), the processor unit, and the cutting/mounting jig with Polaroid slide frames. If you have all those parts, you could try the film again, but assume it must be around ISO 6 now!
I visited the Polaroid plant in Loch Levenside, Scotland, where the film was made. They gave me some of the stainless steel '35mm film' which is used in part of the MF process - just like 35mm, but thin stainless flexible sheet. I never found any use for that and I guess it is still coiled up in a box, souvenir of a bit of Scottish employment history which like Nimslo (I also visited and photographed the Timex plant in Dundee when it made the Nimslo 3D camera) was too short lived to think about.