Google Sheets: COUNTIF, ARRAYFOMULA, FILTER, REGEXMATCH, REGULAR EXPRESSIONS (RE2) Okay, wait! Stop!… …I know the byline contained regular expressions, but I promise you I won’t just leave you with the formula for you to figure out your own jumbled mass of jibberish characters or inundate you with a list of commands and leave to attempt … Continue reading Google Sheets: Counting and Filtering Rows where Cells Contain Particular Values.