Office 2013 64 Bits -

Microsoft Office 2013 64-bit was a major release of the Office productivity suite, designed specifically to take advantage of the increased memory and performance capabilities of 64-bit operating systems like Windows 7 and Windows 8. Core Benefits and Capabilities

: Office 2013 licenses generally allow for both 32-bit and 64-bit installations. However, you cannot run both versions on the same machine simultaneously; you must uninstall one before installing the other. Visual Design Office 2013 64 Bits

• Word 2013: A word processing application that includes features such as improved formatting and layout tools, as well as integration with cloud services.
• Excel 2013: A spreadsheet application that includes features such as improved data analysis and visualization tools, as well as integration with cloud services.
• PowerPoint 2013: A presentation application that includes features such as improved slide design and transition tools, as well as integration with cloud services.
• Outlook 2013: A personal information management application that includes features such as improved email and calendar tools, as well as integration with cloud services.
• Publisher 2013: A desktop publishing application that includes features such as improved layout and design tools.
• Access 2013: A database management application that includes features such as improved data modeling and reporting tools.

You should choose the 64-bit version if: Microsoft Office 2013 64-bit was a major release