Office 2013 64 Bits Fixed -

You rely on older 32-bit COM add-ins, ActiveX controls, or specialized software extensions.

Many third-party COM (Component Object Model) add-ins and ActiveX controls compiled for 32-bit Office will not function in Office 2013 64-bit. Organizations relying on legacy ERP plugins or custom Excel macros must obtain updated 64-bit versions from their vendors. VBA (Visual Basic for Applications) Compatibility Office 2013 64 Bits