In this example, the goal is to sum the amounts shown in column C by month using the dates in column B. The article below explains two approaches. One approach is based on the SUMIFS function, which can sum numeric values based on multiple...Read more
The REGEXTEST function provides a way to test for specific text defined by a "regex" pattern. The result from REGEXTEST is TRUE or FALSE. You can think of REGEXTEST as a major upgrade to simpler functions like FIND and SEARCH, which can be used to...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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