SQL Server Business Intelligence Development Studio (BIDS) is a tool comes with SQL Server installation. If you have open few SSIS packages or SSRS reports in BIDS, there are two options that you can use to close them. First option is Close from which you can close the current package or report. Next option is Close All But This will close all the packages or reports except for the current one.
However, suddenly there was a new option appeared in my PC which Close All. This option can be used to close all the packages or reports.
I found that recently I installed Visual Studio and I believe this option came from the Visual Studio installation.