Decimal Places in a cell

We have a Smartsheet that we use for tracking payments made to a different country and therefore in a different currency. We have an exchange rate column and for the company we use to make the payment, the exchange rate is given with 6 decimal places. However, the Smartsheet only allows 5 decimal places to show. Is there a way to change this?

For example, we want the cell to say that the exchange rate is 1.439239 but it will only show 1.43923.