You can export data from a filter list into an external text (.txt) file. You cannot select individual items to be exported; you must export the filter list in its entirety.To export items from a filter list
Select the filter list from which you are exporting data.
Click Edit, and then in the Filter Details pane, click Export.
In the file Explorer window, navigate to the location where you want to export the text file, specify the file name, and then click Save.
The items in the filter list are exported into the file. The items appear on a single line, separated by commas.