For years I’ve been using the same pst-file with Outlook and it now has grown quite big (it currently is 5.6GB).

To speed up Outlook and backup performance, I thought about splitting up my pst-file into multiple files. As data will no longer change in these pst-files, I would no longer have to include them in my daily backups.

Is there any way I could split up my pst-file into yearly archives?