barry houdini questions

barry houdini answers

• How to count number of "Yes" in column C once only if ID in column B repeats
• Excel Formula: Count cells where value is date
• Excel: Sum a range of cells if a related key is in a range of values using a formula
• Excel RANDBETWEEN as a string
• =MATCH() returns wrong value
• Calculate the Biweekly Pay-period in Excel 2010
• How to sum of filtered rows where condition applies?
• Excel Array formula IF(multiple criteria)
• Countifs in Excel with list of names as criteria
• Optimizing Excel formulas - SUMPRODUCT vs SUMIFS/COUNTIFS