How-To Geek on MSN

How to use the MAP function in Microsoft Excel

Use MAP and LAMBDA to build centralized, error-proof, and auto-spilling Excel spreadsheet systems.
How-To Geek on MSN

Excel's UNIQUE function can't skip columns—unless you use this trick

Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.

Microsoft January 2026 Patch Tuesday fixes 3 zero-days, 114 flaws

Today is Microsoft' 2026 Patch Tuesday with security updates for 114 flaws, including one actively exploited and two publicly ...

I won the Microsoft Excel World Championship. Here's what every office worker should know about Excel.

Diarmuid Early won first place in the 2025 Microsoft Excel World Championship. He has some pointers for using Excel at work.
Redmond Magazine

The New Copilot Function Vastly Improves Microsoft Excel, Part 2

Microsoft’s new Copilot function in Excel lets users generate, analyze and explain data directly from cell formulas, marking a major step toward full AI integration within spreadsheets. Microsoft’s ...
Redmond Magazine

The New Copilot Function Vastly Improves Microsoft Excel, Part 1

Excel’s newest Copilot integration finally delivers the data intelligence Microsoft promised years ago, transforming how users clean, organize and understand information within their spreadsheets. Way ...
Analytics Insight

10 Common Excel Formula Mistakes and How to Fix Them Easy Guide

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