Hi Patrick.Pang,
From your description, it seems that you want to find Microsoft Date and Time Picker Control under ActiveX controls in Excel.
If my understanding is right, we have also tested it on our side with the latest version of current channel in Excel, we just installed 64 bit Microsoft 365 Business, and we found we also cannot find this control under ActiveX control, as shown below:
At the same time, we have also tested it with different Channels with 64 bit, and we also cannot find this control. The 64-bit version is not compatible with 32-bit active x.
We’re sorry that it doesn’t meet your requirement, we do understand the inconvenience caused and apologize for it.
To address your concern about the situation, we’d suggest you go to provide your feedback via clicking File > Feedback in Excel. This is the best platform to let us hear from you and make our products and services better for you and others.
For a workaround, we also found an Office add-in called Mini Calendar and Date Picker via Insert> Get add-ins, please try to check if it could meet your need, as shown below:
You can also refer to the workaround Waqas provided in this thread: Adding a date picker in Excel 365 32 bit.
Your understanding and patience will be highly appreciated.
Best Regards,
Tin