Description : Best excel formula to put daily data into weekly data?
Last Answer : Depends on the version of excel If you are using the 2007 version, you can simply use the SUMIFS, AVERAGEIFS, COUNTIFS, etc. functions. Link to MS Explanation If you are using the 2003 version, you will ... 24/09, etc into 10/19/09. This could be done by the DATE function and the WEEKDAY function.