In this example, the goal is to count the unique dates in a range of timestamps (i.e. dates that contain dates and times). In addition, we also want to create the table of results seen in E7:F9. For convenience, data is the named range B5:B16...Read more
The LET function lets you define named variables in a formula. There are two primary reasons you might want to do this: (1) to improve performance by eliminating redundant calculations and (2) to make more complex formulas easier to read and write. Once a variable is named, it can be...Read more
The 4% retirement rule suggests you can safely withdraw 4% of your portfolio in year one of retirement, then adjust that amount for inflation each year for 30 years without running out of money. But how does this actually play out year by year? This article builds a complete Excel model to...Read more
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