The best use date on the package of shredded cheddar cheese read 3 Sep 22. By the time I opened the package this morning, the cheese was blue and sad. Not on my omelet.
Once had pint of heavy cream, uncovered way, way back in the fridge a tear later. It was over a year old.
It was fine. Passed the smell test.
The storage life of cheese is highly variable depending on how it's handled. Assuming it was refrigerated, if that package had never been opened and not exposed to mold spores in the air, it would have probably been fine well past September.