Excel offers several easy ways to calculate expiry dates. This post explores different ways to automate expiry date calculations in Excel.

Bookkeepers, project managers, HR departments and more use the Excel Date & Time functions WEEKNUM, ISOWEEKNUM, WORKDAY, WORKDAY.INTL to calculate time. Here's how.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

Here are four ways to express dates using data validation: literal values, input values, a list, and formulas. I’m using Excel 2016 (desktop) on a Windows 10 64-bit system.