If you use Microsoft Dynamics CRM Online, exporting data to a static worksheet creates a local copy of the exported data and stores it on your computer. The data is transferred from CRM Online to your computer by using a secure SSL connection, and no connection is maintained between this local copy and CRM Online.
When you export to a dynamic worksheet or PivotTable, a link is maintained between the Excel worksheet and CRM Online. Every time a dynamic worksheet or PivotTable is refreshed, you'll be authenticated with CRM Online using your credentials. You'll be able to see the data that you have permissions to view.
An administrator determines whether or not an organization's users are permitted to export data to Excel by using security roles.