Excel’s Date & Time functions ease the workload for bookkeepers, project planners, HR departments, and other jobs where time is money. The four functions covered here—ISOWEEKNUM, WEEKNUM, WORKDAY, ...

If you've ever started up a Mac that sat unplugged for long enough to discharge the battery that backs up its memory of the current date and time, you've seen the date January 1, 1904, replace the ...

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Mary Ann Richardson explains that when concatenating date and text cell data in an Excel formula, you need to convert date cells to text to avoid unexpected results. When concatenating—using a formula ...

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. One of the ...