Advanced Calendar (reusable function)

Supercharge your Excel & Power BI reports with a ready-to-use calendar function. Generate complete date tables with fiscal periods, ISO weeks, dynamic relative offsets, holiday flags, and business-day indexes. Fully customizable for any fiscal year start and weekend definition. Perfect for analysts and BI professionals who want a professional date dimension without reinventing the wheel.

Bonus content:
M-code provided with ready-to-use query
Example in both Excel and Power BI
How to use guide (PDF)