How to add pop-up calendar in spreadsheet cell

To add a pop-up calendar in Excel that appears when you click a cell, you’ll first need to enable the Developer tab (via File > Options > Customize Ribbon). Once enabled, go to Developer > Insert > More Controls, and look for "Microsoft Date and Time Picker Control". If available, you can insert it onto the sheet, then link it to a specific cell by setting its LinkedCell property. However, if you're using a 64-bit version of Excel or the control isn't listed, you'll need to use a VBA workaround. This involves creating a UserForm with a calendar control (like MonthView) in the VBA editor and using code to show it when a user clicks a specific cell. Let me know if you'd like help setting up the VBA version!