Function Type: Date and Time
Description:
Converts a serial number to a number representing where the week falls numerically with a year.
Function Structure:
=WEEKNUM(serial_number, return_type).
Argument Breakdown:
serial_number – A valid Excel date in a serial number format.
return_type – The day the week begins. Default is 1.
Example:

If you need instant expert help with Excel or Google Sheets, please visit my fiverr gig.