Excel filters help you find exactly what you want, no matter how big your spreadsheet database is. Here's how to set number, text and data filters.

The NETWORKDAYS function in Excel is a date and time function that returns the number of whole working days between Start_date and End_date.

The Excel WORKDAY function's purpose is to return the serial number of the date before and after a specified number of workdays. Learn how to use it.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000. It's fallen off current Excel menus, but you can still use ...

Excel for the web now supports conditional formatting, and the interface is easier to use than the desktop edition. Susan Harkins shows you how to use it.

Cells in Excel are referred to using relative or absolute references. A formula with relative references changes when the cell's position does.

Microsoft Excel's Month and Weekday functions output numeric values for a given date. The Month function results in the month numbers, such as "3" for March or "12" for December. The Weekday ...