The boxiness can be reduced and the sleeves shortened, but it's a size too big in the shoulders and (not correctable) too short. Return. Unfortunately, it looks like a set of measurements that few off-the-rack suits can be made to fit well.
The suit is too big in the shoulders (hard to fix) and too long in the sleeves. Also, the drape of the pants is wrong in a way that is best left for a tailor to figure out.By the way, the shirt color is too dark for that suit.
The first pair can be worn with chinos that aren't black. However, it should not be worn to a typical workplace. It is too showy.
The second pair can be worn with chinos, shorts, etc. in colors such as brown and pastel and also with blue or white denim.