You can use the "Upgrade Management Tools" to backup Report, Universe or Full configuratios into BIAR file.
If you need restore object in other CA BO installation, you need to run the "Upgrade Management tools" with the " -internal_use_only_noversioncheck" param
ej: to restore, you need to change the shortcut access
"C:\Program Files (x86)\CA\SC\CommonReporting4\SAP BusinessObjects Enterprise XI 4.0\win64_x64\sapjvm\bin\javaw.exe" -Xmx8g -Djava.library.path="..\..\..\..\win64_x64" -jar upgrademanagementtool.jar -internal_use_only_noversioncheck

With this you can use this tool to export and import the BIAR objects between different environments of CA BO 4.1
Juan