# Managing knowledge base data sources

You can manage your knowledge base's data sources and files from the source table in Summary.

In the source table, you can:

* Edit connection configurations to include or exclude files.

* Remove connections from the KB.

* Remove files from a connection.

* Restore files from a connection.

You can also index sources in the source table. For more information, see [Indexing knowledge base data sources](https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/QlikAnswers/indexing-knowledge-bases.htm).

## Editing data source configurations

In the hierarchical view, you can edit the data source connections. You can:

* Change the files included by your manual selection.

* Change the dynamic rules used to select files.

Information note

You cannot change the type of selection used by a connection. If you want to switch to a manual or dynamic selection, you must add the files again, using the new selection type.

Do the following:

1. In the hierarchical view, click the Source options icon > Edit configuration on a connection.

2. Edit your selections.

3. Click Save.

## Removing connections

You can remove data source connections from your knowledge bases. Removing a connection removes all files from that connection.

Do the following:

* In the hierarchical view, click the Source options icon > Remove connection on a connection.

  Alternatively, select the connections you want to remove and select Remove from knowledge base.

## Removing files

You can remove individual files from your connection. Removed files are deleted when the connection is next indexed.

Do the following:

* In the flat file view, click the Source options icon > Remove file on the file.

  Alternatively, select the files you want to remove and select Remove from knowledge base.

## Restoring files

You can restore removed files before they are deleted in the next indexing.

Information noteYou cannot use Restore file on a file that will be removed due to changes to your dynamic selection rules. To restore the file, edit your dynamic selection rules to include the file.

Do the following:

* In the flat file view, click the Source options icon > Restore file on a removed file.

  Alternatively, select the files want to restore and select Restore selected items.