Xtras included on LE5 install DVD

Hi All,
Please can someone advise me.I am a new user to Cubase. Just installed LE5 from a DVD packaged with the effects unit I purchased quite a while ago.
I have everything running ok I believe but am wondering what the Xtras folder on the DVD contains. Is there anything that may be of use on my windows 8 laptop as it looks like MAC related stuff ?

Kindest Regards