Formulas used in spreadsheets edited by web applications like Excel Online, Google Sheets, among others.
Formulas are used in spreadsheets to perform calculations. They use operators, functions and other features that depend on the spreadsheet application.
When using this tag, be sure to pair it with the tag for the web application to which you are referring so that you can get an appropriate answer. (Examples: google-spreadsheets, excel-online)
If you are asking about a specific spreadsheet function rather than a formula use worksheet-function instead.
Reference: Wikipedia
