You can also create bundles of items, see product price history, enter volume discounts, and link similar products together to offer substitutions. Quotes are stored in a Microsoft Access database file, ensuring a highly flexible format. You can fax, print, or email a quote by customizing your output or using a variety of pre-existing formats. Another powerful feature is the ability to convert a quote into an invoice (once the customer accepts the quote) by using a drop-down menu.