In this example, the goal is to sum amounts by weekday. In other words, we want to sum amounts by Monday, Tuesday, Wednesday, and so on. Column B contains valid Excel dates formatted with a custom number format explained below. For convenience, all source data...Read more
The REGEXREPLACE function replaces text matching a specific regex pattern in a given text string. You can think of REGEXREPLACE as a much more powerful version of the simplistic SUBSTITUTE function. While both functions can be used to search and...Read more
Excel's random functions like RAND and RANDARRAY recalculate every time you edit your worksheet, making it impossible to maintain stable random results. This article shows you how to build a seeded random number generator using Excel's LAMBDA function, allowing you to generate reproducible...Read more
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