From Access Help -
1. Create a query that contains the linked dBase III table whose records
you want to append to another table.
a. In the Database window, click Queries under Objects, and then
click New on the Database window toolbar.
b. In the New Query dialog box, click Design View, and then click OK.
c. In the Show Table dialog box, click the tab that lists the tables
or queries whose data you want to work with.
2. In query Design view, select Query from the Menu, and then click Append.
The Append dialog box appears.
3. In the Table Name box, select the name of the table you want to append
records to. Click OK.
4. Drag from the field list to the query design grid the fields you want to
append and any fields you want to use for setting criteria.
5. If the fields you've selected have the same name in both tables,
Microsoft Access automatically fills the matching name in the Append To row.
If the fields in the two tables don't have the same name, in the Append To
row, enter the names of the fields in the table you're appending to.
6. In the Criteria cell for the fields that you have dragged to the grid,
type the criteria on which additions will be made.
7. To preview the records that the query will append, click View on the
toolbar. To return to query Design view, click View on the toolbar again.
Make any changes you want in Design view.
8. Click Run on the toolbar to add the records.