Bex Workbook Migration to AFO .

Dear Expert ,

I need to convert my Bex Workbook (7.0) to AFO 2.8 . My question is can we do the Migration to 32 Bit or does it need only 64 bit MS office.

Please do let me know if its really doesn't matter either its 32 or 64 bit and migrated workbook will work fine in Both .

Also can you please guide me which we should install as per SAP best practice for AFO 2.8 workbook , 32 bit or 64 bit ?

Hope for your kind advice and solution.

Regards,

Dubey