How do I convert a calendar week into a date in Excel?

Question

I have a week number and a year, and would like to calculate the date of the Monday for that specific week in Microsoft Excel.

Year   Week   Date (Monday)
2012   1      January 2, 2012
2013   16     April 15, 2013
2014   42     October 13, 2014

What formula can I use to convert a calendar week to a specific date?

Answer 1

For ISO week numbers you can use this formula to get the Monday

=DATE(A2,1,-2)-WEEKDAY(DATE(A2,1,3))+B2*7

assuming year in A2 and week number in B2

it's the same as my answer here https://stackoverflow.com/a/10855872/1124287