You can browse and restore granular data, such as a file, a library, a sub site, or a site collection. Offline mining of data is useful when granular backup is not available.
To perform a granular restore, you must have a content database attached to a SQL server.
Verify that you are performing offline mining on one of the following versions of SharePoint server:
SharePoint Server 2016
SharePoint Sever 2013
SharePoint Server 2010
The source client machine must have a SQL server with a content database attached. You can attach a content database to the source client machine using any of the following methods:
The SharePoint agent must be installed on a SharePoint application server.