![]() Regex to extract number from stringįollowing the basic maxim of teaching "from simple to complex", we'll start with a very plain case: extracting number from string. Those who have experience with regex would agree that writing regular expressions is a never-ending road to perfection - almost always there's a way to make it more elegant or capable of handling a wider range of input data. We cannot guarantee they will work flawlessly in your real worksheets. Out regex examples are written for fairy simple data sets. If the pattern is invalid, a #VALUE! error occurs.īefore you start using this custom function in your worksheets, you need to understand what it is capable of, right? The below examples cover a few common use cases and explain why the behavior may differ in Dynamic Array Excel (Microsoft 365 and Excel 2021) and traditional Excel (2019 and older versions).If a valid pattern is not found, the function returns nothing (empty string).Because of the VBA limitations, the case-insensitive construct (?i) won't work. For case-insensitive matching, set the match_case argument to FALSE. By default, the function is case-sensitive.To get a specific occurrence, supply a corresponding number to the instance_num argument. By default, the function returns all found matches into neighboring cells like shown in this example.To effectively use the function in your Excel, there are a few important things to take notice of: The function works in all versions of Excel 365, Excel 2021, Excel 2019, Excel 2016, Excel 2013 and Excel 2010.Ĥ things you should know about RegExpExtract If TRUE or omitted (default), case-sensitive matching is performed if FALSE - case-insensitive. Match_case (optional) - defines whether to match or ignore text case.If omitted, returns all found matches (default). Instance_num (optional) - a serial number that indicates which instance to extract.When supplied directly in a formula, the pattern should be enclosed in double quotation marks. Pattern (required) - the regular expression to match.Text (required) - the text string to search in.
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