You can export the metadata of one or more items in the Grid view to a .csv file using the Export items to CSV  option in the toolbar. The metadata exported is basically the column values that you have configured in the Grid view settings.

NOTE: The Export to CSV option is supported only in the Grid view. 

For more information about using these features, refer to the Exporting metadata of items in the Grid view section in iManage Work 10 Web Help available on https://docs.imanage.com.