How do you format as currency in Excel?

The problem is that currency rates change all the time. So all you can really do is get the current value of the currency you want to change and either multiply or divide, depending on what way you are converting and how the values relate to each other.

So if 1 in one currency is worth 0.88 in the other and you have 2 of the first currency, then you multiply the 2 by the 0.88 to convert, giving you 1.76

If 1 in one currency is worth 1.30 in the other and you have 2 of the first currency, then you multiply the 2 by the 1.30 to convert, giving you 2.60.

If the 1 is worth 0.88, then if you divide the 1 by the 0.88, you'll find what 1 of the second currency is worth in the first currency. 1 divided by 0.88 will give you 1.14.

If the 1 is worth 1.46, then if you divide the 1 by the 1.46, you'll find what 1 of the second currency is worth in the first currency. 1 divided by 1.46 will give you 0.68 of the second one.