Backup of all SSRS reports buildt in ReportBuilder 3.0 SQL Server 2008 R2

Hi,

please reference me to the procedure of backing up of all the SSRS reports built in Report Builder 3.0, SQL Server 2008 R2, in order to

1) to have safe data at another location

2) to restore all reports on SQL Server 2014 accompanied with Visual Studio 2013.

Thanks