: Unlike the 32-bit version (limited to 2GB), the 64-bit version can access significantly more system memory.
: Many legacy ActiveX controls and third-party COM add-ins were strictly 32-bit. Installing the 64-bit suite often meant losing specialized tools for SAP reporting or proprietary macros. Office 2013 64 Bits
Microsoft Project 2013 (often bundled or associated with the suite) benefited immensely from 64-bit architecture when handling projects with thousands of sub-tasks and complex resource dependencies. The Compatibility Trade-off : Unlike the 32-bit version (limited to 2GB),
