It's time to join the Pythonistas.

Calculating sales tax on prices is something you don't have to worry about if you use Excel. You can add a formula to the spreadsheet you use for invoices, bills of sale or quotes, and that's the end ...

Learn how Excel IMPORTCSV refreshes linked CSV data, handles locale formats, and switches to IMPORTTEXT for semicolon delimiters.

Replace legacy formulas with MAP, BYROW, BYCOL, SCAN, and REDUCE to build secure, scalable, and automated spreadsheets.

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

Anthropic upgraded Claude’s Excel and PowerPoint add-ins with shared context, reusable Skills, and cross-app workflows for business users.

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Compound interest is interest that's calculated on ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. David Kindness is a Certified Public Accountant (CPA) and an expert in the ...

Anthropic has launched shared context for Claude's Excel and PowerPoint add-ins, enabling cross-app workflows and reusable one-click Skills for enterprise teams.