Some files should essentially be excluded from the backup:

1. various caches - especially browser caches
2. files from the recycle bin (Recycler)
3. temporary files
4. core files
5. software installations
    

Files of this type should be excluded from the backup with suitable "include-exclude-statements" since a backup is neither necessary nor reasonable but these files still occupy resources (especially storage resources) of the backup server. Further information on "include-exclude-lists" and examples can be found in the documents for advanced training events (transparencies, script).