Blinksale allows you to download an XML-formatted file containing all your users, clients and invoices. You can then keep this file on your local computer as a backup, burn it to CD-R or use it in other applications than understand XML. To download your data, hit the Invoices tab then click the XMLlink at the bottom of the page. Your web browser may ask you where you want to save the file, or it’ll just download it and dump it in your standard download location (such as your desktop).
An Excel export option, which summarizes the invoices only, is also available from the same spot.