In the worksheet shown, we have a list of values in column C. The goal is to dynamically average the last n values using the numbers in cell E5 for n. Since the list may grow over time, the key requirement is to average amounts by position....Read more
The GROUPBY function is designed to summarize data by grouping rows and aggregating values. The result is a dynamic summary table created with a single formula. The output from the GROUPBY function is similar to the output from a Pivot Table, but without formatting. The summary returned by...Read more
Excel's DATEDIF function is widely used for calculating the difference between two dates in years, months, or days, but it will silently return buggy results in specific cases. DATEDIF2 is a custom LAMBDA function that replaces DATEDIF with reliable date arithmetic. This article explains...Read more
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