Hi,
Below information will be helpful to you
Microsoft Office 64-bit editions
Up to patch level 6 of SAP GUI for Windows 7.30, Desktop Office Integration only supports Microsoft Office 32-bit editions.
Update: As of patch level 7 of SAP GUI for Windows 7.30, the 64-bit version of Office 2013 is also supported, and as of patch level 5 of SAP GUI for Windows 7.40, the 64-bit version of Office 2016 is also supported. Note that this support is explicitly granted only for Desktop Office Integration.If you use other components that interact with Microsoft Office (for example, Business Explorer or Interactive Excel), only the 32-bit versions of Microsoft Office can be used. For more information, see SAP Note 1442028.
722513 - Desktop Office Integration: Maintenance information
Thanks,
Mofizur