Why would you install in 32-bit?
Install Office 2013 (32 & 64-bit) with Office 365
Office 365 Personal, Home or Business products are great ways to access all of Microsoft’s Office products on your desktop, tablet or mobile phone. It’s much better than having to buy each version of Office separately and enter a product key like we used to have to do.
With Office 365, you get free updates whenever a new version comes out, and it’s easy to move your copy of Office from one computer to another. If you have Home or Business, you can install Office on multiple machines without any problems.
However, by default, Office 365 installs 32-bit versions of Office on systems. I suspect they do this for compatibility purposes. However, most modern computers support 64-bit and have 64-bit operating systems installed, so why install 32-bit software if you can avoid it?
