There are a few ways to round numbers up in Excel. The first way is to use the ROUND function. The ROUND function takes a number as an input and rounds it to the nearest integer. The second way is to use the CEILING function. The CEILING function takes a number as an input and rounds it up to the nearest integer. The third way is to use the INT function. The INT function takes a number as an input and rounds it down to the nearest integer.