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excel formula to calculate date from week number. The Excel WEEKDAY function returns an integer between 1 and 7 the corresponds specific day of a week. The formula to return the Start date of the week is as follows.
Put the formula WEEKNUMA2 in cell B2 and hit Enter. You can also have it exclude weekends and holidays too. For calculating the Start date of the current week this is the formula.
DATEyear month day Step 1.
The NETWORKDAYS Function is used to calculate working days in Excel between two dates. To determine how many weeks elapsed between two dates we can use a simple formula to find the number of days between the dates then divide by 7. In the example shown the formula in C5 copied down is. Calculating a date using the relevant numbers for day of the week week number and year number.