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, ...

Write Excel formulas that are easy to understand and don't consume lots of memory.

Have you ever stared at a sprawling Excel spreadsheet, wondering how to make sense of the chaos? For many, Excel formulas feel like a secret language, powerful yet elusive. But here’s the truth: ...

If you need to calculate dates in your spreadsheets, Excel uses its own unique system, which it calls Serial Numbers. Every date (month, day, year) and time (hour, minute, and second) has an ...

Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...

Microsoft Excel lets you create simple forms that your users can enter data. To save them time and make sure you get the information you need, you can create a drop-down box that limits the users to ...