If I install a program in bootcamp Windows (say MS-Excel 64-bit), is that same program and the files created therefrom available in Parallel Windows ? Background: I have a license to install Excel on 1 more computer. Typically, the 32-bit version of MS-Office is installed, but I would like to make use of the larger spreadsheet available in the 64-bit version of Excel. The 32-bit version is typically installed even on 64-bit machines because there can only be one type of Office installed (Word, Outlook, etc.). The 64-bit version of Office breaks some things (macros, etc.). However, I only want to use Excel in Bootcamp/Parallel. Anyways, from what I read windows programs only need to get installed once. I would just like to double check. I wonder also, if a program is installed in Parallel, is it available in boot camp. Thanks, cheers !