When you upgrade a BlackBerry® Enterprise Server instance, the upgrade process does not automatically add the new attachment extensions that the latest BlackBerry Enterprise Server version supports. You must add the new attachment extensions after the upgrade process completes so that the BlackBerry Enterprise Server can recognize the new attachments and send them to a BlackBerry Attachment Service instance for processing. The following list of supported file formats were added to versions later than BlackBerry Enterprise Server version 4.1 SP3: .amr*, .wmf, .wma, .pptx, .docx, .xlsx, .odp, .ods, .odt, and .ott files.

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > Attachment > Connector.
2. Click the BlackBerry Attachment Connector instance for the BlackBerry Enterprise Server.
3. Click Edit instance.
4. Click Supported Attachment Server instances.
5. For the BlackBerry Attachment Service instance that you want the BlackBerry Enterprise Server to send new attachments to, click the Edit icon.
6. Add the new attachments to the attachments extensions list.
7. Click the Save icon.
8. Click Save all.
9. Restart the BlackBerry Enterprise Server by performing the following actions:
   1. On the Servers and components menu, expand BlackBerry Solution topology > BlackBerry Domain > Component view > BlackBerry Enterprise Server.
   2. Click the BlackBerry Enterprise Server instance that you upgraded. Click Restart instance.