This is important before you install If you have a version of 32-bit or 64-bit Office in your computer and you want to install Office 365, Office 2016, Office 2013, or an Office stand-alone application like Visio, you have to install the corresponding 32-bit or 64-bit version of the other program. For example, if your computer has a 32-bit version of Office 2010 and you want to install Office 2013, you have to install the 32-bit version. You can't mix 32-bit and 64-bit versions of Office. For details, see
“Office (64-bit) couldn’t be installed” error when you install Office 2013 or Office 365.