Hi WaiHong_Ng,
Based on your description, you tend to change default Reference in VBA Editor without OLE Automation and Microsoft Office 16.0 Object Library. I also found a similar thread for Office 2010 to create a macro-enabled template for Excel. Based on my test, the solution also works on Office 365 Excel client when you open the created template file on Excel client next time. You can check here for more details to achieve that.
Best regards,
Dihao