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Bookmark or Share- Overview of formulas in Excel - Microsoft SupportGet started on how to create formulas and use built-in functions to perform calculations and solve problems. Important: The calculated results of formulas and some Excel worksheet functions may differ slightly between a Windows PC using x86 or x86-64 architecture and a Windows RT PC using ARM architecture. Learn more about the differences.
- INDEX function - Microsoft SupportThere are two ways to use the INDEX function: If you want to return the value of a specified cell or array of cells, see Array form. If you want to return a reference to specified cells, see Reference form. Returns the value of an element in a table or an array, selected by the row and column number indexes.
- Use the SUM function to sum numbers in a rangeYou can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers. For example =SUM (A2:A6) is less likely to have typing errors than =A2+A3+A4+A5+A6.
- DATEVALUE function - Microsoft SupportThis article describes the formula syntax and usage of the DATEVALUE function in Microsoft Excel. The DATEVALUE function converts a date that is stored as text to a serial number that Excel recognizes as a date. For example, the formula =DATEVALUE ("1/1/2008") returns 39448, the serial number of the date 1/1/2008.
- Excel functions (alphabetical) - Microsoft SupportStatistical: Returns the average (arithmetic mean) of all cells that meet multiple criteria. Math and trigonometry: Rounds a number the nearest integer or to the nearest multiple of significance. Regardless of the sign of the number, the number is rounded up. This function is not available in Excel for the web.
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