Excel for the web

Create formulas

Your browser does not support video. Install Microsoft Silverlight, Adobe Flash Player, or Internet Explorer 9.

Try it!

Just like the desktop version of Excel, Excel for the web lets you use formulas and functions to perform calculations.

  1. Select a cell.

  2. Type the equal sign =.

  3. Type or select a cell, or type in a function, like SUM.

  4. Enter an operator, like minus -, or select the cells or range that are part of the function.

  5. Press Enter for the result. The result shows in the cell, but you can always see the formula in the Formula bar.

Dynamic arrays

Excel formulas that return multiple values, also known as an array, return results to neighboring cells. This behavior is called spilling. Any formula that has the potential to return multiple results can be referred to as a dynamic array formula.

  1. Select a cell with room around for results to spill into.

  2. As an example, type =SORTBY(A2:B15,B2:B15,1).

  3. Press Enter for the results.

    Note: Array formulas can't be input if there is anything blocking the output range. If this happens, Excel will return a #SPILL! error indicating that there is a blockage. If you remove the blockage, the formula will spill as expected.

Want more?

Overview of formulas in Excel

Excel functions (by category)

Dynamic arrays and spilled array behavior

Excel help & training

Office for the web Quick Starts

Expand your Office skills
Explore training
Get new features first
Join Office Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×