If you would like to export a filtered list of invoices, make sure to apply the filter first. Otherwise, you will export the entire list. However, keep in mind that the amount of invoices you will see will be based on the settings performance tabs configuration. Administrators who wish to speed up performance may elect to limit the number of past invoices that show up by default. Once you have obtained the desired list of invoices, click the 
button in the accounting center toolbar.