You can import dashboards and folders from a .dashboards file that was exported from Dashboards.
Select
Share > Import
Dashboards.
Select the .dashboards file to import and the
folder to which to import it.
Click
Next.
Select the dashboards and folders to import.
Click
Next.
The content connections that are required by the imported
dashboards are listed. If the required connections exist then they are preselected.
Note: Select
Import as new from
the Import Selection list to create a new connection. If the connection already
exists, a duplicate is created. The duplicate cannot be deleted if it is used by
any dashboard.