Build flexible Excel functions that automatically handle blanks, defaults, and overrides without messy nested IFs.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. CAGR measures an investment's average annual growth ...

Excel already knows when the month ends.

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...

Incorrect cell references cause errors; double-check ranges and use absolute references ($A$1). Misspelled functions disrupt calculations; use Excel’s autocomplete ...

Microsoft has rolled out a game-changing update for Excel: the COPILOT function. This new AI-powered formula brings natural language capabilities directly into spreadsheets, enabling users to analyze, ...

In this post, we will show you how to calculate the expiry date in Microsoft Excel. Calculating expiry dates is a common requirement when working with Excel, especially for tracking inventory, ...

Microsoft Excel is a widely used spreadsheet software that has been around for decades. To learn Excel, start slowly, play around with the basics, and seek out online tutorials. Excel is part of the ...