You can import addresses, items, time entries, reminders and notes into your xentral via the module Master data import. You can find this module in xentral under Management > Import/Export Center > Master Data Import.
Furthermore, you can also import your existing receipts into your xentral system via the module Receipts Importer. You can find this module in xentral under Management → Import/Export Central → Receipts Importer.
You can find more information in our manual: