Data exported from Table visual resulting in some duplication.

I have a Table visual with columns of account numbers, client name, product, and dollar value of account. I have a Card visual that shows me how many accounts exist based on filtering with slicers. The Card value is correct. The Total Sum of the dollar value of accounts as shown in the Table is correct. However, when I export the data from the Table, some of the accounts become duplicated. I cannot determine what is causing this.