If you don't want to process files that have the "Archive bit" on, but you do want to process other files, then you must set the ExcludedFileAttributes property to xfaArchive.

If you don't want to process files that have the "Hidden" or "System" attributes on, but you do want to process other files, then you must set the ExcludedFileAttributes property to xfaHidden + xfaSystem.

But…

If you only want to zip files that have the "Archive bit" on, and skip all other files, then you need to use the RequiredFileAttributes property, not the ExcludedFileAttributes property.