To count errors by sheet a workbook you can use a formula based on the ISERROR function, with help from INDIRECT and SUMPRODUCT. In the worksheet shown, the formula in cell C5 is: =SUMPRODUCT(--(ISERROR(INDIRECT("'"&B5&"'!A1:F101")))) As the formula …Read more
The Excel REGEXEXTRACT function extracts matching text defined by a given pattern. Regex patterns are very flexible and can be configured to match numbers, email addresses, dates, and other values that have an identifiable structure. By default, REGEXEXTRACT will return the first match, but it can …Read more
Combinations and permutations are two basic ways to count possibilities, used in probability, statistics, games, passwords, and lotteries. This article explains the difference between them, when order and repetition matter, and the Excel functions you can use to calculate each case: FACT, PERMUT, …Read more
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