Many apps use a timestamp to determine when a record is entered or a project is completed. They’re common and useful when you need to know when something happens. There are a few ways to get the job ...

Use MAP and LAMBDA to build centralized, error-proof, and auto-spilling Excel spreadsheet systems.

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 ...

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 ...