Q.elephant ear bulbs
I bought elephant eat bulbs about 2 years ago and never even opened the box to plant them. Are they still good to plant?

Here is an article that discusses the shelf life of flower bulbs. The quality of the flower decreases with each season the bulb does not go into the ground, however, I would not let that deter you. I would recommend planting the bulbs no matter what - you have nothing to lose and might get rewarded!
https://www.gardeningknowhow.com/ornamental/bulbs/bgen/flower-bulb-shelf-life.htm