When creating summary tables in Excel, you often encounter situations like wanting to calculate totals for each representative or counting only last month's entries.You know exactly what you want to ...

DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000, which is the only version that explains how this function works.

When you enter a number into an Excel cell that looks like a date, such as "Jun-1" or "6/1," Excel automatically adjusts the format of the cell to display a date, so you may not know that Excel ...

As you create Excel spreadsheets for your small business, time and date functions frequently add both convenience and programming capability to your workbooks. There's good news with date functions.

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 ...

Excel's built-in features cover most jobs, but these five free add-ins make everything from date entry to data analysis easier.

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, ...