The Discover Permissions results are batched as (maximum) 50 results per page. At the bottom of the page there are page numbers you can use to display each set of 50 results.
The page contains the following columns:
- Scope. When the hyperlink is clicked the home (default) page of the site/list or the property page of the list item/file is displayed.
- User. The account’s Display Name.
- Permission. The permission level(s) that is mapped to the account on the object.
- Permissioned Via. Lists graphically how the user has been given access to the object. To expand SharePoint Groups, click the plus sign (+) to the left of the group name.
Sorting the Results
You can sort the results using the column headings Scope, User, Permission, and Permissioned Via. Sorting is completed against all the results returned, that is, sorting is not limited to the 50 results displayed on a specific page when there are more than 50 results are returned.
Filtering the results
The Filter icon 
displayed to the right of each column heading can be used to refine the results returned. See the next section for more information on how to filter the results of the discover permission action.
Exporting the results
To export the results, click Export to CSV on the Ribbon in the Reporting group. The Microsoft® Excel spreadsheet file name is of the format, ExportDiscoveredPermissions_yyyy-mm-ddXXX.csv, where XXX is the timestamp unique for each file. All results are exported, that is, the results exported are not limited to the results displayed on a specific page when more than 20 results returned from the Discover Permissions command.
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