Improving Your Outlook
Importing and exporting Outlook items has many uses. You can share data between several users, back up your Outlook data, and transfer data to or from external applications. Outlook is highly customizable, having the capability to use custom forms to store additional enterprise-specific data not found in the standard contact form. However, importing and exporting information stored in custom fields isn't as simple as it might sound. You cannot actually use Outlook's Import and Export Wizard to work with data in custom forms. User-defined fields will never appear when you attempt to map custom fields. If you attempt to export from a custom form, you won't even get Outlook's default fields, let alone the custom fields.