To help you with updating a calendar in Excel, I'll need more specific information about what you're looking to achieve. Here are a few common tasks related to updating a calendar in Excel, and you can let me know which one aligns with your goal, or provide more details about your specific requirements:
Adding Events to a Calendar:
Are you looking to add events, appointments, or entries to specific dates on the calendar?
Dynamic Date Updates:
Do you want the calendar to automatically update based on the current date or any other dynamic criteria?
Are you interested in formatting cells in the calendar based on specific conditions or criteria?
Data Validation for Dates:
Do you want to set up data validation to ensure that only valid dates can be entered?
Other Specific Tasks:
If there's another specific task you have in mind, please provide more details.
Once you clarify your specific requirements, I can provide more tailored guidance or formulas to help you achieve your goal.
In this link you will find some more information about it: