How long can coconut liquid/cream last (open) in the fridge?
Coconut cream, being generally oily, will give out rancidity in taste and smell once it rots. When extracted fresh as done in asia, coconut cream typically expires in a matter of hours. Since yours is canned, it's likely to have been reconstituted from coconut powder, ridding it from the spoiling enzymes in fresh coconut.

As long as you open your cans cold and keep its leftovers cold thereafter, it's easy to beat the printed expiry. The thing with coconut cream and liquid, it rots so suddenly, as soon as you turn your back. So its manufacturers are wary of users who aren't familiar with how sudden these things rot, which is why asians press and cook them within the same few hours.